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authorJesper Juhl <jesper.juhl@gmail.com>2007-07-15 23:41:53 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-16 09:05:52 -0700
commitb2111217df52827916141789c87d614ae45236db (patch)
treeb947351d6b5f744d6d7f261729ebefcad97df71d
parent3f1b0e1f287547903f11fa1e6de7d2765597766e (diff)
downloadop-kernel-dev-b2111217df52827916141789c87d614ae45236db.zip
op-kernel-dev-b2111217df52827916141789c87d614ae45236db.tar.gz
isapnp: remove pointless check of 'type' against 0 in isapnp_read_tag()
In drivers/pnp/isapnp/core.c::isapnp_read_tag() there is a test of 'type' being == 0 a bit down in the function. That test doesn't make any sense. If 'type' could indeed be NULL, then the test happens way too late as we'd already have tried to dereference the pointer earlier and looking at the callers it also turns out that there is no way type can ever actually be NULL. So the test is completely pointless and should just be removed. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/pnp/isapnp/core.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/pnp/isapnp/core.c b/drivers/pnp/isapnp/core.c
index a0b1587..914d00c 100644
--- a/drivers/pnp/isapnp/core.c
+++ b/drivers/pnp/isapnp/core.c
@@ -370,8 +370,6 @@ static int __init isapnp_read_tag(unsigned char *type, unsigned short *size)
#if 0
printk(KERN_DEBUG "tag = 0x%x, type = 0x%x, size = %i\n", tag, *type, *size);
#endif
- if (type == 0) /* wrong type */
- return -1;
if (*type == 0xff && *size == 0xffff) /* probably invalid data */
return -1;
return 0;
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