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Commit 4d9cf901 authored by Hareesh Gundu's avatar Hareesh Gundu Committed by Gerrit - the friendly Code Review server
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msm: kgsl: Add a NULL check for limit pointer 



KGSL power limit pointer can be error or NULL. Add a NULL
check for limit pointer to avoid NULL pointer dereference.

Change-Id: I4aacaddd1cd9b34f1befc21807eb7ab577f0a7f1
Signed-off-by: default avatarHareesh Gundu <hareeshg@codeaurora.org>
parent ee7aa3c3

drivers/gpu/msm/kgsl_pwrctrl.c

+3 −3
Original line number Diff line number Diff line
@@ -3086,7 +3086,7 @@ EXPORT_SYMBOL(kgsl_pwr_limits_add); 
void kgsl_pwr_limits_del(void *limit_ptr)

{

	struct kgsl_pwr_limit *limit = limit_ptr;

	if (IS_ERR(limit))

	if (IS_ERR_OR_NULL(limit))

		return;



	_update_limits(limit, KGSL_PWR_DEL_LIMIT, 0);
@@ -3107,7 +3107,7 @@ int kgsl_pwr_limits_set_freq(void *limit_ptr, unsigned int freq) 
	struct kgsl_pwr_limit *limit = limit_ptr;

	int level;



	if (IS_ERR(limit))

	if (IS_ERR_OR_NULL(limit))

		return -EINVAL;



	pwr = &limit->device->pwrctrl;
@@ -3129,7 +3129,7 @@ void kgsl_pwr_limits_set_default(void *limit_ptr) 
{

	struct kgsl_pwr_limit *limit = limit_ptr;



	if (IS_ERR(limit))

	if (IS_ERR_OR_NULL(limit))

		return;



	_update_limits(limit, KGSL_PWR_SET_LIMIT, 0);