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privcmd_ioeventfd_assign(): don't open-code eventfd_ctx_fdget()

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just call it, same as privcmd_ioeventfd_deassign() does...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2024-07-20 01:31:47 -04:00
parent 554ceb7a5e
commit 46b5e18ae8
1 changed files with 1 additions and 10 deletions
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11
drivers/xen/privcmd.c
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@ -1352,7 +1352,6 @@ static int privcmd_ioeventfd_assign(struct privcmd_ioeventfd *ioeventfd)
struct privcmd_kernel_ioeventfd *kioeventfd;
struct privcmd_kernel_ioreq *kioreq;
unsigned long flags;
struct fd f;
int ret;
/* Check for range overflow */
@ -1372,15 +1371,7 @@ static int privcmd_ioeventfd_assign(struct privcmd_ioeventfd *ioeventfd)
if (!kioeventfd)
return -ENOMEM;
f = fdget(ioeventfd->event_fd);
if (!fd_file(f)) {
ret = -EBADF;
goto error_kfree;
}
kioeventfd->eventfd = eventfd_ctx_fileget(fd_file(f));
fdput(f);
kioeventfd->eventfd = eventfd_ctx_fdget(ioeventfd->event_fd);
if (IS_ERR(kioeventfd->eventfd)) {
ret = PTR_ERR(kioeventfd->eventfd);
goto error_kfree;