diff options
-rw-r--r-- | drivers/char/mem.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/char/mem.c b/drivers/char/mem.c index 91dd669273e0..a85f3a361442 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c | |||
@@ -817,7 +817,7 @@ static ssize_t kmsg_write(struct file * file, const char __user * buf, | |||
817 | size_t count, loff_t *ppos) | 817 | size_t count, loff_t *ppos) |
818 | { | 818 | { |
819 | char *tmp; | 819 | char *tmp; |
820 | int ret; | 820 | ssize_t ret; |
821 | 821 | ||
822 | tmp = kmalloc(count + 1, GFP_KERNEL); | 822 | tmp = kmalloc(count + 1, GFP_KERNEL); |
823 | if (tmp == NULL) | 823 | if (tmp == NULL) |
@@ -826,6 +826,9 @@ static ssize_t kmsg_write(struct file * file, const char __user * buf, | |||
826 | if (!copy_from_user(tmp, buf, count)) { | 826 | if (!copy_from_user(tmp, buf, count)) { |
827 | tmp[count] = 0; | 827 | tmp[count] = 0; |
828 | ret = printk("%s", tmp); | 828 | ret = printk("%s", tmp); |
829 | if (ret > count) | ||
830 | /* printk can add a prefix */ | ||
831 | ret = count; | ||
829 | } | 832 | } |
830 | kfree(tmp); | 833 | kfree(tmp); |
831 | return ret; | 834 | return ret; |