[Patch] Deref in drivers/block/paride/pf.c

From: Eric Sesterhenn
Date: Wed Jun 28 2006 - 17:31:51 EST


hi,

another possible dereference detected by
coverity (id #759). pf_probe() might call
pf_identify() which might call get_capacity()
which dereferences pf->disk

Signed-off-by: Eric Sesterhenn <snakebyte@xxxxxx>


--- linux-2.6.17-git11/drivers/block/paride/pf.c.orig 2006-06-28 23:30:13.000000000 +0200
+++ linux-2.6.17-git11/drivers/block/paride/pf.c 2006-06-28 23:30:32.000000000 +0200
@@ -707,7 +707,7 @@ static int pf_detect(void)
if (pi_init(pf->pi, 0, conf[D_PRT], conf[D_MOD],
conf[D_UNI], conf[D_PRO], conf[D_DLY],
pf_scratch, PI_PF, verbose, pf->name)) {
- if (!pf_probe(pf) && pf->disk) {
+ if (pf->disk && !pf_probe(pf)) {
pf->present = 1;
k++;
} else


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