"ret" is zero here so we can remove the "!ret" part of the condition. "uhdr" is alread a __user pointer so we can remove the cast. Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> --- Btw, speaking of __user pointers there are some places where we dereference them in this file. It's not a security problem because we have already used copy_to_user() to successfully write to the pointer at point. But if you have something like PAX which puts user pointers and kernel pointers in a separate address space then this will cause problems. Run sparse to see the issue. diff --git a/drivers/misc/sgi-gru/grukdump.c b/drivers/misc/sgi-gru/grukdump.c index 2bef3f76032a..a3700a56b8ff 100644 --- a/drivers/misc/sgi-gru/grukdump.c +++ b/drivers/misc/sgi-gru/grukdump.c @@ -178,10 +178,10 @@ static int gru_dump_context(struct gru_state *gru, int ctxnum, hdr.cbrcnt = cbrcnt; hdr.dsrcnt = dsrcnt; hdr.cch_locked = cch_locked; - if (!ret && copy_to_user((void __user *)uhdr, &hdr, sizeof(hdr))) - ret = -EFAULT; + if (copy_to_user(uhdr, &hdr, sizeof(hdr))) + return -EFAULT; - return ret ? ret : bytes; + return bytes; } int gru_dump_chiplet_request(unsigned long arg) -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
