parisc architecture fixes and updates for kernel v5.20-rc1:

One real bugfix to change the io_pgetevents_time64() syscall to use the compat
 implementation when running in compat mode, otherwise the signed int32
 parameters min_nr and nr will be incorrectly handled as unsigned int64 values.
 
 Other than that just small cleanups:
 * hardware database housekeeping and proper /proc/iomem output
 * add proper function exit code if probe functions fail
 * drop stale variables (pa_swapper_pg_lock)
 * drop unneccessary zero-initializations
 * typo fixes in comments
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Merge tag 'for-5.20/parisc-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux

Pull parisc updates from Helge Deller:
 "One real bugfix to change the io_pgetevents_time64() syscall to use
  the compat implementation when running in compat mode, otherwise the
  signed int32 parameters min_nr and nr will be incorrectly handled as
  unsigned int64 values.

  Other than that just small cleanups:

   - hardware database housekeeping and proper /proc/iomem output

   - add proper function exit code if probe functions fail

   - drop stale variables (pa_swapper_pg_lock)

   - drop unneccessary zero-initializations

   - typo fixes in comments"

* tag 'for-5.20/parisc-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  Input: gscps2 - check return value of ioremap() in gscps2_probe()
  parisc: io_pgetevents_time64() needs compat syscall in 32-bit compat mode
  parisc: Drop zero variable initialisations in mm/init.c
  parisc: Do not initialise statics to 0
  parisc: Check the return value of ioremap() in lba_driver_probe()
  parisc: Drop pa_swapper_pg_lock spinlock
  parisc: Fix comment typo in fault.c
  parisc: Fix device names in /proc/iomem
  parisc: Clean up names in hardware database

arch/parisc/kernel/cache.c

@@ -50,9 +50,6 @@ void flush_instruction_cache_local(void); /* flushes local code-cache only */
  */
 DEFINE_SPINLOCK(pa_tlb_flush_lock);
 
-/* Swapper page setup lock. */
-DEFINE_SPINLOCK(pa_swapper_pg_lock);
-
 #if defined(CONFIG_64BIT) && defined(CONFIG_SMP)
 int pa_serialize_tlb_flushes __ro_after_init;
 #endif

arch/parisc/kernel/drivers.c

@@ -520,7 +520,6 @@ alloc_pa_dev(unsigned long hpa, struct hardware_path *mod_path)
 	dev->id.hversion_rev = iodc_data[1] & 0x0f;
 	dev->id.sversion = ((iodc_data[4] & 0x0f) << 16) |
 			(iodc_data[5] << 8) | iodc_data[6];
-	dev->hpa.name = parisc_pathname(dev);
 	dev->hpa.start = hpa;
 	/* This is awkward.  The STI spec says that gfx devices may occupy
 	 * 32MB or 64MB.  Unfortunately, we don't know how to tell whether
@@ -534,10 +533,10 @@ alloc_pa_dev(unsigned long hpa, struct hardware_path *mod_path)
 		dev->hpa.end = hpa + 0xfff;
 	}
 	dev->hpa.flags = IORESOURCE_MEM;
-	name = parisc_hardware_description(&dev->id);
-	if (name) {
-		strlcpy(dev->name, name, sizeof(dev->name));
-	}
+	dev->hpa.name = dev->name;
+	name = parisc_hardware_description(&dev->id) ? : "unknown";
+	snprintf(dev->name, sizeof(dev->name), "%s [%s]",
+		name, parisc_pathname(dev));
 
 	/* Silently fail things like mouse ports which are subsumed within
 	 * the keyboard controller

arch/parisc/kernel/hardware.c

@@ -23,9 +23,6 @@
  *	HP PARISC Hardware Database
  *	Access to this database is only possible during bootup
  *	so don't reference this table after starting the init process
- *
- *	NOTE: Product names which are listed here and ends with a '?'
- *	are guessed. If you know the correct name, please let us know.
  */
  
 static struct hp_hardware hp_hardware_list[] __initdata = {
@@ -212,7 +209,7 @@ static struct hp_hardware hp_hardware_list[] __initdata = {
 	{HPHW_NPROC,0x5DD,0x4,0x81,"Duet W2"},
 	{HPHW_NPROC,0x5DE,0x4,0x81,"Piccolo W+"},
 	{HPHW_NPROC,0x5DF,0x4,0x81,"Cantata W2"},
-	{HPHW_NPROC,0x5DF,0x0,0x00,"Marcato W+ (rp5470)?"},
+	{HPHW_NPROC,0x5DF,0x0,0x00,"Marcato W+ (rp5470)"},
 	{HPHW_NPROC,0x5E0,0x4,0x91,"Cantata DC- W2"},
 	{HPHW_NPROC,0x5E1,0x4,0x91,"Crescendo DC- W2"},
 	{HPHW_NPROC,0x5E2,0x4,0x91,"Crescendo 650 W2"},
@@ -266,11 +263,11 @@ static struct hp_hardware hp_hardware_list[] __initdata = {
 	{HPHW_NPROC,0x888,0x4,0x91,"Storm Peak Fast DC-"},
 	{HPHW_NPROC,0x889,0x4,0x91,"Storm Peak Fast"},
 	{HPHW_NPROC,0x88A,0x4,0x91,"Crestone Peak Slow"},
-	{HPHW_NPROC,0x88B,0x4,0x91,"Crestone Peak Fast?"},
+	{HPHW_NPROC,0x88B,0x4,0x91,"Crestone Peak Fast"},
 	{HPHW_NPROC,0x88C,0x4,0x91,"Orca Mako+"},
 	{HPHW_NPROC,0x88D,0x4,0x91,"Rainier/Medel Mako+ Slow"},
 	{HPHW_NPROC,0x88E,0x4,0x91,"Rainier/Medel Mako+ Fast"},
-	{HPHW_NPROC,0x892,0x4,0x91,"Mt. Hamilton Slow Mako+?"},
+	{HPHW_NPROC,0x892,0x4,0x91,"Mt. Hamilton Slow Mako+"},
 	{HPHW_NPROC,0x894,0x4,0x91,"Mt. Hamilton Fast Mako+"},
 	{HPHW_NPROC,0x895,0x4,0x91,"Storm Peak Slow Mako+"},
 	{HPHW_NPROC,0x896,0x4,0x91,"Storm Peak Fast Mako+"},
@@ -1198,7 +1195,7 @@ static struct hp_hardware hp_hardware_list[] __initdata = {
 	{HPHW_FIO, 0x004, 0x00340, 0x0, "BARCO CX4500 VME Grphx Cnsl"}, 
 	{HPHW_FIO, 0x004, 0x00360, 0x0, "Hughes TOG VME FDDI"}, 
 	{HPHW_FIO, 0x076, 0x000AD, 0x0, "Crestone Peak Core RS-232"},
-	{HPHW_FIO, 0x077, 0x000AD, 0x0, "Crestone Peak Fast? Core RS-232"},
+	{HPHW_FIO, 0x077, 0x000AD, 0x0, "Crestone Peak Fast Core RS-232"},
 	{HPHW_IOA, 0x185, 0x0000B, 0x00, "Java BC Summit Port"}, 
 	{HPHW_IOA, 0x1FF, 0x0000B, 0x00, "Hitachi Ghostview Summit Port"}, 
 	{HPHW_IOA, 0x580, 0x0000B, 0x10, "U2-IOA BC Runway Port"}, 

arch/parisc/kernel/pci-dma.c

@@ -36,8 +36,8 @@
 #include <asm/tlbflush.h>	/* for purge_tlb_*() macros */
 
 static struct proc_dir_entry * proc_gsc_root __read_mostly = NULL;
-static unsigned long pcxl_used_bytes __read_mostly = 0;
-static unsigned long pcxl_used_pages __read_mostly = 0;
+static unsigned long pcxl_used_bytes __read_mostly;
+static unsigned long pcxl_used_pages __read_mostly;
 
 extern unsigned long pcxl_dma_start; /* Start of pcxl dma mapping area */
 static DEFINE_SPINLOCK(pcxl_res_lock);

arch/parisc/kernel/syscalls/syscall.tbl

@@ -413,7 +413,7 @@
 412	32	utimensat_time64		sys_utimensat			sys_utimensat
 413	32	pselect6_time64			sys_pselect6			compat_sys_pselect6_time64
 414	32	ppoll_time64			sys_ppoll			compat_sys_ppoll_time64
-416	32	io_pgetevents_time64		sys_io_pgetevents		sys_io_pgetevents
+416	32	io_pgetevents_time64		sys_io_pgetevents		compat_sys_io_pgetevents_time64
 417	32	recvmmsg_time64			sys_recvmmsg			compat_sys_recvmmsg_time64
 418	32	mq_timedsend_time64		sys_mq_timedsend		sys_mq_timedsend
 419	32	mq_timedreceive_time64		sys_mq_timedreceive		sys_mq_timedreceive

arch/parisc/mm/fault.c

@@ -38,7 +38,7 @@ int show_unhandled_signals = 1;
 /*
  * parisc_acctyp(unsigned int inst) --
  *    Given a PA-RISC memory access instruction, determine if the
- *    the instruction would perform a memory read or memory write
+ *    instruction would perform a memory read or memory write
  *    operation.
  *
  *    This function assumes that the given instruction is a memory access

arch/parisc/mm/init.c

@@ -722,7 +722,7 @@ static unsigned long space_id[SID_ARRAY_SIZE] = { 1 }; /* disallow space 0 */
 static unsigned long dirty_space_id[SID_ARRAY_SIZE];
 static unsigned long space_id_index;
 static unsigned long free_space_ids = NR_SPACE_IDS - 1;
-static unsigned long dirty_space_ids = 0;
+static unsigned long dirty_space_ids;
 
 static DEFINE_SPINLOCK(sid_lock);
 

drivers/input/serio/gscps2.c

@@ -350,6 +350,10 @@ static int __init gscps2_probe(struct parisc_device *dev)
 	ps2port->port = serio;
 	ps2port->padev = dev;
 	ps2port->addr = ioremap(hpa, GSC_STATUS + 4);
+	if (!ps2port->addr) {
+		ret = -ENOMEM;
+		goto fail_nomem;
+	}
 	spin_lock_init(&ps2port->lock);
 
 	gscps2_reset(ps2port);

drivers/parisc/lba_pci.c

@@ -1476,9 +1476,13 @@ lba_driver_probe(struct parisc_device *dev)
 	u32 func_class;
 	void *tmp_obj;
 	char *version;
-	void __iomem *addr = ioremap(dev->hpa.start, 4096);
+	void __iomem *addr;
 	int max;
 
+	addr = ioremap(dev->hpa.start, 4096);
+	if (addr == NULL)
+		return -ENOMEM;
+
 	/* Read HW Rev First */
 	func_class = READ_REG32(addr + LBA_FCLASS);