[ARM] msm: smd: don't crash if the smd channel table doesn't exist

Signed-off-by: Brian Swetland <swetland@google.com> Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
git-mirror · May 12, 2010 · 4d4fb26 · 4d4fb26
1 parent 2eb44eb
commit 4d4fb26
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/arch/arm/mach-msm/smd.c b/arch/arm/mach-msm/smd.c
@@ -204,7 +204,10 @@ static void smd_channel_probe_worker(struct work_struct *work)
 	unsigned n;
 
 	shared = smem_find(ID_CH_ALLOC_TBL, sizeof(*shared) * 64);
-
+	if (!shared) {
+		pr_err("smd: cannot find allocation table\n");
+		return;
+	}
 	for (n = 0; n < 64; n++) {
 		if (smd_ch_allocated[n])
 			continue;