From 4b3812d90b2c93723adf4b6ce99240d301f7d5f9 Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Mon, 13 Nov 2023 20:49:39 -0800 Subject: [PATCH] Revert "ptp: Fixes a null pointer dereference in ptp_ioctl" This reverts commit 8a4f030dbced6fc255cbe67b2d0a129947e18493. Richard says: The test itself is harmless, but keeping it will make people think, "oh this pointer can be invalid." In fact the core stack ensures that ioctl() can't be invoked after release(), otherwise Bad Stuff happens. Fixes: 8a4f030dbced ("ptp: Fixes a null pointer dereference in ptp_ioctl") Link: https://lore.kernel.org/all/ZVAf_qdRfDAQYUt-@hoboy.vegasvil.org/ Signed-off-by: Jakub Kicinski --- drivers/ptp/ptp_chardev.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/ptp/ptp_chardev.c b/drivers/ptp/ptp_chardev.c index e95a6ed130ef..3f7a74788802 100644 --- a/drivers/ptp/ptp_chardev.c +++ b/drivers/ptp/ptp_chardev.c @@ -176,8 +176,6 @@ long ptp_ioctl(struct posix_clock_context *pccontext, unsigned int cmd, int enable, err = 0; tsevq = pccontext->private_clkdata; - if (!tsevq) - return -EINVAL; switch (cmd) {