Commit 7bfe056a authored Nov 22, 2019 by Subash Abhinov Kasiviswanathan

drivers: shs: fix null check before freeing slow start list



Checks the correct pointer for null before freeing the associated page for
slow start shared memory. Fixes the following:

[ 2982.239281] Unable to handle kernel paging request at virtual address ffffffbfadadadb4
[ 2982.239512] pc : __free_pages+0x24/0xc0
[ 2982.239515] lr : free_pages+0x38/0x48
[ 2982.240605] Call trace:
[ 2982.240609] __free_pages+0x24/0xc0
[ 2982.240613] free_pages+0x38/0x48
[ 2982.240632] rmnet_shs_release_ss_flows+0x38/0x58 [rmnet_shs]

Change-Id: I1c61b8c9c89905e94c24f6836eaf1d7f56566162
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>

parent 23d40883

drivers/rmnet/shs/rmnet_shs_wq_mem.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -205,7 +205,7 @@ static int rmnet_shs_release_ss_flows(struct inode inode, struct file filp)
		struct rmnet_shs_mmap_info *info;

		rm_err("%s", "SHS_MEM: rmnet_shs_release - entry\n");
		if (gflow_shared) {
		if (ssflow_shared) {
		info = filp->private_data;
		ssflow_shared = NULL;
		free_page((unsigned long)info->data);