malhuda/msm-4.14
1
0
Fork 0
mirror of https://github.com/rd-stuffs/msm-4.14.git synced 2025-02-20 11:45:48 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

powerpc/sysdev: fix incorrect use to determine if list is empty

Browse Source 
[ Upstream commit fa1321b11bd01752f5be2415e74a0e1a7c378262 ]

'gtm' will *always* be set by list_for_each_entry().
It is incorrect to assume that the iterator value will be NULL if the
list is empty.

Instead of checking the pointer it should be checked if
the list is empty.

Fixes: 83ff9dcf375c ("powerpc/sysdev: implement FSL GTM support")
Signed-off-by: Jakob Koschel <jakobkoschel@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220228142434.576226-1-jakobkoschel@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jakob Koschel 2022-02-28 15:24:33 +01:00 committed by Greg Kroah-Hartman
parent 1c63f5ab2d
commit 9aeea41fa6
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/powerpc/sysdev/fsl_gtm.c
View File

@ -90,7 +90,7 @@ static LIST_HEAD(gtms);
*/
struct gtm_timer *gtm_get_timer16(void)
{
struct gtm *gtm = NULL;
struct gtm *gtm;
int i;
list_for_each_entry(gtm, &gtms, list_node) {
@ -107,7 +107,7 @@ struct gtm_timer *gtm_get_timer16(void)
spin_unlock_irq(&gtm->lock);
}
if (gtm)
if (!list_empty(&gtms))
return ERR_PTR(-EBUSY);
return ERR_PTR(-ENODEV);
}