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cmd: scsi: Fix null pointer dereference in 'scsi reset'

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During 'scsi reset', scsi_bus_reset() is called with udevice pointed
to NULL, which causes exception. As a temporary fix, disable the call
for DM SCSI for now.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng 2017-06-17 06:36:00 -07:00 • committed by Simon Glass
parent 9c1390d4b9
commit db13a768a0
1 changed files with 2 additions and 0 deletions
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2
cmd/scsi.c
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@ -36,7 +36,9 @@ static int do_scsi(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
case 2: case 2:
if (strncmp(argv[1], "res", 3) == 0) { if (strncmp(argv[1], "res", 3) == 0) {
printf("\nReset SCSI\n"); printf("\nReset SCSI\n");
#ifndef CONFIG_DM_SCSI
scsi_bus_reset(NULL); scsi_bus_reset(NULL);
#endif
ret = scsi_scan(true); ret = scsi_scan(true);
if (ret) if (ret)
return CMD_RET_FAILURE; return CMD_RET_FAILURE;