This is an automatic generated email to let you know that the following patch were queued at the http://git.linuxtv.org/v4l-dvb.git tree:
Subject: V4L/DVB: media/radio: fix copy_to_user to user handling Author: Dan Carpenter <[email protected]> Date: Fri Jun 4 07:34:40 2010 -0300 copy_to/from_user() returns the number of bytes remaining to be copied but the code here was testing for negative returns. I modified it to return -EFAULT. These functions are called from si4713_s_ext_ctrls() and that only tests for negative error codes. Signed-off-by: Dan Carpenter <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/radio/si4713-i2c.c | 12 ++++++++++-- 1 files changed, 10 insertions(+), 2 deletions(-) --- http://git.linuxtv.org/v4l-dvb.git?a=commitdiff;h=f36169147bc3655a6b732c6f6be93b525f1f1fab diff --git a/drivers/media/radio/si4713-i2c.c b/drivers/media/radio/si4713-i2c.c index ab63dd5..fc7f4b7 100644 --- a/drivers/media/radio/si4713-i2c.c +++ b/drivers/media/radio/si4713-i2c.c @@ -1009,8 +1009,10 @@ static int si4713_write_econtrol_string(struct si4713_device *sdev, goto exit; } rval = copy_from_user(ps_name, control->string, len); - if (rval < 0) + if (rval) { + rval = -EFAULT; goto exit; + } ps_name[len] = '\0'; if (strlen(ps_name) % vqc.step) { @@ -1031,8 +1033,10 @@ static int si4713_write_econtrol_string(struct si4713_device *sdev, goto exit; } rval = copy_from_user(radio_text, control->string, len); - if (rval < 0) + if (rval) { + rval = -EFAULT; goto exit; + } radio_text[len] = '\0'; if (strlen(radio_text) % vqc.step) { @@ -1367,6 +1371,8 @@ static int si4713_read_econtrol_string(struct si4713_device *sdev, } rval = copy_to_user(control->string, sdev->rds_info.ps_name, strlen(sdev->rds_info.ps_name) + 1); + if (rval) + rval = -EFAULT; break; case V4L2_CID_RDS_TX_RADIO_TEXT: @@ -1377,6 +1383,8 @@ static int si4713_read_econtrol_string(struct si4713_device *sdev, } rval = copy_to_user(control->string, sdev->rds_info.radio_text, strlen(sdev->rds_info.radio_text) + 1); + if (rval) + rval = -EFAULT; break; default: _______________________________________________ linuxtv-commits mailing list [email protected] http://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
