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telephony: fix return value

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If copy_from_user fails, the return value gets overwritten.

Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Nicolas Kaiser
2010-10-29 11:41:42 +02:00
committed by Jiri Kosina
parent 229aebb873
commit b0438a1b71
1 changed files with 2 additions and 1 deletions
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drivers/telephony/ixj.c
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@@ -6581,6 +6581,7 @@ static long do_ixj_ioctl(struct file *file_p, unsigned int cmd, unsigned long ar
case IXJCTL_SET_FILTER: case IXJCTL_SET_FILTER:
if (copy_from_user(&jf, argp, sizeof(jf))) if (copy_from_user(&jf, argp, sizeof(jf)))
retval = -EFAULT; retval = -EFAULT;
else
retval = ixj_init_filter(j, &jf); retval = ixj_init_filter(j, &jf);
break; break;
case IXJCTL_SET_FILTER_RAW: case IXJCTL_SET_FILTER_RAW: