diff options
| author | Anastasia Belova | 2022-12-09 13:05:50 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2022-12-31 13:32:00 +0100 |
| commit | 412bd425cc35271265e47c1492bf2024d2a2e156 (patch) | |
| tree | 4b3e7db47764d4a5835aa1dd327e1ac0445d5ff0 /arch/mips | |
| parent | dc72247494843a257cd3791dfc70b2a0c69daeba (diff) | |
MIPS: BCM63xx: Add check for NULL for clk in clk_enable
[ Upstream commit ee9ef11bd2a59c2fefaa0959e5efcdf040d7c654 ]
Check clk for NULL before calling clk_enable_unlocked where clk
is dereferenced. There is such check in other implementations
of clk_enable.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: e7300d04bd08 ("MIPS: BCM63xx: Add support for the Broadcom BCM63xx family of SOCs.")
Signed-off-by: Anastasia Belova <abelova@astralinux.ru>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/bcm63xx/clk.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/mips/bcm63xx/clk.c b/arch/mips/bcm63xx/clk.c index 6e6756e8fa0a..86a6e2590866 100644 --- a/arch/mips/bcm63xx/clk.c +++ b/arch/mips/bcm63xx/clk.c @@ -361,6 +361,8 @@ static struct clk clk_periph = { */ int clk_enable(struct clk *clk) { + if (!clk) + return 0; mutex_lock(&clocks_mutex); clk_enable_unlocked(clk); mutex_unlock(&clocks_mutex); |