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authorƁukasz Majewski <l.majewski@samsung.com>2014-02-24 13:33:08 +0100
committerTom Rini <trini@ti.com>2014-02-24 10:56:33 -0500
commiteae745379d4c6453d8f8888a8003a1c1ebcfbbd3 (patch)
treed50ee5458a84172dd4eb82cbca0e305e98ccc169 /drivers/power
parent6445262ca8d0400def05c4ef8e2b8e8424929599 (diff)
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power: fix: Do not execute pmic command when not all necessary parameters are passed
Lack of this check resulted in a data abort when CPU tried to execute the following command (without further mandatory input): 'pmic MAX77686_PMIC'. Only the 'pmic list' command requires one passed parameter. Other require at least two valid parameters for correct operation. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Diffstat (limited to 'drivers/power')
-rw-r--r--drivers/power/power_core.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/power/power_core.c b/drivers/power/power_core.c
index 29ccc83..fe1f316 100644
--- a/drivers/power/power_core.c
+++ b/drivers/power/power_core.c
@@ -140,6 +140,9 @@ int do_pmic(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
return CMD_RET_SUCCESS;
}
+ if (argc < 3)
+ return CMD_RET_USAGE;
+
name = argv[1];
cmd = argv[2];