X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=fs%2Fcifs%2Fcifs_debug.c;h=73c4c419663c1dc1a3558d2df405fcb58bc07e66;hb=c7597836510336e3d1e9d09e82fcc9d322ba5c61;hp=56c5d9126f50239958280ec958b69ec934eda095;hpb=a23d30698190f05491a6096f027311f94d4d26d5;p=linux-2.6-omap-h63xx.git

diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 56c5d9126f5..73c4c419663 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -879,11 +879,16 @@ security_flags_write(struct file *file, const char __user *buffer,
 	if (count < 3) {
 		/* single char or single char followed by null */
 		c = flags_string[0];
-		if (c == '0' || c == 'n' || c == 'N')
+		if (c == '0' || c == 'n' || c == 'N') {
 			extended_security = CIFSSEC_DEF; /* default */
-		else if (c == '1' || c == 'y' || c == 'Y')
+			return count;
+		} else if (c == '1' || c == 'y' || c == 'Y') {
 			extended_security = CIFSSEC_MAX;
-		return count;
+			return count;
+		} else if (!isdigit(c)) {
+			cERROR(1, ("invalid flag %c", c));
+			return -EINVAL;
+		}
 	}
 	/* else we have a number */