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| author | Jean-François Moine <moinejf@free.fr> | 2011-05-17 10:58:57 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-05-21 16:33:31 +0400 |
| commit | bff6069dc16c84862a915d1d5564789928c173bf (patch) | |
| tree | 8718f6b0f084093c68ddeb92522cce5ebb89a51d | |
| parent | f7242d30034da3f2937fbe9eb3d17355bbff58d1 (diff) | |
| download | linux-bff6069dc16c84862a915d1d5564789928c173bf.tar.xz | |
[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>
| -rw-r--r-- | drivers/media/video/gspca/stk014.c | 15 | ||||
| -rw-r--r-- | drivers/media/video/gspca/t613.c | 17 |
2 files changed, 12 insertions, 20 deletions
diff --git a/drivers/media/video/gspca/stk014.c b/drivers/media/video/gspca/stk014.c index 87be52b5e1e3..763747700f10 100644 --- a/drivers/media/video/gspca/stk014.c +++ b/drivers/media/video/gspca/stk014.c @@ -436,17 +436,14 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, 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; } diff --git a/drivers/media/video/gspca/t613.c b/drivers/media/video/gspca/t613.c index a3eccd815766..7e762d551099 100644 --- a/drivers/media/video/gspca/t613.c +++ b/drivers/media/video/gspca/t613.c @@ -92,8 +92,6 @@ static int sd_setmirror(struct gspca_dev *gspca_dev, __s32 val); 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_getlowlight(struct gspca_dev *gspca_dev, __s32 *val) 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, |