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DM: Fix a potential null-pointer dereference

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Signed-off-by: Huang Yang <yang.huang@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Huang, Yang 2018-05-29 15:22:15 -04:00 committed by lijinxia
parent 3d7aa346b8
commit 8838c94d5b
1 changed files with 1 additions and 1 deletions
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2
devicemodel/hw/platform/rpmb/rpmb_sim.c
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@ -162,7 +162,7 @@ static int rpmb_sim_open(const char *rpmb_devname)
rpmb_fd = fopen(rpmb_devname, "wb+");
DPRINTF(("rpmb device file(%s) does not exist, create a new file\n", rpmb_devname));
/* Write 0 to the last byte to enable 4MB length access */
if (file_write(rpmb_fd, &data, 1, TEEDATA_SIZE - 1) < 0) {
if (rpmb_fd == NULL || file_write(rpmb_fd, &data, 1, TEEDATA_SIZE - 1) < 0) {
DPRINTF(("Failed to initialize simulated rpmb to 0.\n"));
rpmb_fd = NULL;
}