commit bff6069dc16c84862a915d1d5564789928c173bf
author Jean-François Moine <moinejf@free.fr> Tue May 17 03:58:57 2011 -0300
committer Mauro Carvalho Chehab <mchehab@redhat.com> Sat May 21 09:33:31 2011 -0300
tree 8718f6b0f084093c68ddeb92522cce5ebb89a51d
parent f7242d30034da3f2937fbe9eb3d17355bbff58d1

[media] gspca - stk014 / t613: Accept the index 0 in querymenu

This patch fixes the kernel bug #15122.

Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/gspca/stk014.c

diff --git a/drivers/media/video/gspca/stk014.c b/drivers/media/video/gspca/stk014.c
index 87be52b..7637477 100644
--- a/drivers/media/video/gspca/stk014.c
+++ b/drivers/media/video/gspca/stk014.c
@@ -436,17 +436,14 @@
 static int sd_querymenu(struct gspca_dev *gspca_dev,
 			struct v4l2_querymenu *menu)
 {
+	static const char *freq_nm[3] = {"NoFliker", "50 Hz", "60 Hz"};
+
 	switch (menu->id) {
 	case V4L2_CID_POWER_LINE_FREQUENCY:
-		switch (menu->index) {
-		case 1:		/* V4L2_CID_POWER_LINE_FREQUENCY_50HZ */
-			strcpy((char *) menu->name, "50 Hz");
-			return 0;
-		case 2:		/* V4L2_CID_POWER_LINE_FREQUENCY_60HZ */
-			strcpy((char *) menu->name, "60 Hz");
-			return 0;
-		}
-		break;
+		if ((unsigned) menu->index >= ARRAY_SIZE(freq_nm))
+			break;
+		strcpy((char *) menu->name, freq_nm[menu->index]);
+		return 0;
 	}
 	return -EINVAL;
 }

drivers/media/video/gspca/t613.c

diff --git a/drivers/media/video/gspca/t613.c b/drivers/media/video/gspca/t613.c
index a3eccd8..7e762d5 100644
--- a/drivers/media/video/gspca/t613.c
+++ b/drivers/media/video/gspca/t613.c
@@ -92,8 +92,6 @@
 static int sd_getmirror(struct gspca_dev *gspca_dev, __s32 *val);
 static int sd_seteffect(struct gspca_dev *gspca_dev, __s32 val);
 static int sd_geteffect(struct gspca_dev *gspca_dev, __s32 *val);
-static int sd_querymenu(struct gspca_dev *gspca_dev,
-			struct v4l2_querymenu *menu);
 
 static const struct ctrl sd_ctrls[] = {
 	{
@@ -1379,17 +1377,14 @@
 static int sd_querymenu(struct gspca_dev *gspca_dev,
 			struct v4l2_querymenu *menu)
 {
+	static const char *freq_nm[3] = {"NoFliker", "50 Hz", "60 Hz"};
+
 	switch (menu->id) {
 	case V4L2_CID_POWER_LINE_FREQUENCY:
-		switch (menu->index) {
-		case 1:		/* V4L2_CID_POWER_LINE_FREQUENCY_50HZ */
-			strcpy((char *) menu->name, "50 Hz");
-			return 0;
-		case 2:		/* V4L2_CID_POWER_LINE_FREQUENCY_60HZ */
-			strcpy((char *) menu->name, "60 Hz");
-			return 0;
-		}
-		break;
+		if ((unsigned) menu->index >= ARRAY_SIZE(freq_nm))
+			break;
+		strcpy((char *) menu->name, freq_nm[menu->index]);
+		return 0;
 	case V4L2_CID_EFFECTS:
 		if ((unsigned) menu->index < ARRAY_SIZE(effects_control)) {
 			strncpy((char *) menu->name,