ppc/pnv: fix check on return value of blk_getlength()
commitfc2527fb024abf92719952c939d751739455bd6b
authorCédric Le Goater <clg@kaod.org>
Tue, 7 Jan 2020 17:18:09 +0000 (7 18:18 +0100)
committerDavid Gibson <david@gibson.dropbear.id.au>
Wed, 8 Jan 2020 01:01:14 +0000 (8 12:01 +1100)
tree4a4928027ce57451c22d8421df6eee2f9aa97337
parent3a688294e2c36575fd3e259a64a066b38e164cbb
ppc/pnv: fix check on return value of blk_getlength()

blk_getlength() returns an int64_t but the result is stored in a
uint32_t. Errors (negative values) won't be caught by the check in
pnv_pnor_realize() and blk_blockalign() will allocate a very large
buffer in such cases.

Fixes Coverity issue CID 1412226.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20200107171809.15556-3-clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
hw/ppc/pnv_pnor.c
include/hw/ppc/pnv_pnor.h