Commit ee9ef11b authored by Anastasia Belova's avatar Anastasia Belova Committed by Thomas Bogendoerfer
Browse files

MIPS: BCM63xx: Add check for NULL for clk in clk_enable 



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: e7300d04 ("MIPS: BCM63xx: Add support for the Broadcom BCM63xx family of SOCs.")
Signed-off-by: default avatarAnastasia Belova <abelova@astralinux.ru>
Reviewed-by: default avatarPhilippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarThomas Bogendoerfer <tsbogend@alpha.franken.de>
parent 31495d4f

arch/mips/bcm63xx/clk.c

+2 −0
Original line number Diff line number Diff line
@@ -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);