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lkdtm: cfi: use NULL for a null pointer rather than zero 

There is a pointer being initialized with a zero, use NULL instead.

Cleans up sparse warning:
drivers/misc/lkdtm/cfi.c💯27: warning: Using plain integer as NULL pointer

Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20220612202708.2754270-1-colin.i.king@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Colin Ian King 2022-06-12 21:27:08 +01:00 committed by Greg Kroah-Hartman
parent 6169525b76
commit 5afbfa8cdd
1 changed files with 1 additions and 1 deletions
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2
drivers/misc/lkdtm/cfi.c
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@ -97,7 +97,7 @@ static volatile int force_check;
static void lkdtm_CFI_BACKWARD(void) static void lkdtm_CFI_BACKWARD(void)
{ {
/* Use calculated gotos to keep labels addressable. */ /* Use calculated gotos to keep labels addressable. */
void *labels[] = {0, &&normal, &&redirected, &&check_normal, &&check_redirected}; void *labels[] = { NULL, &&normal, &&redirected, &&check_normal, &&check_redirected };
pr_info("Attempting unchecked stack return address redirection ...\n"); pr_info("Attempting unchecked stack return address redirection ...\n");