IB/srp: Fix memory leak in options parsing

Fix memory leak if parsing destination GID fails.

Coverity bug 1042

Signed-off-by: Roland Dreier <[e-mail]>

drivers/infiniband/ulp/srp/ib_srp.c

···
 			p = match_strdup(args);
 			if (strlen(p) != 32) {
 				printk(KERN_WARNING PFX "bad dest GID parameter '%s'\n", p);
+				kfree(p);
 				goto out;
 			}