mmc: Fix static checker warnings

Correct pointer dereferencing check to be more consistent.

Eliminate the below smatch warning:
drivers/mmc/mmc.c:3118 mmc_init_device()
warn: variable dereferenced before check 'm' (see line 3116)

Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Reviewed-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>

diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 0b7c0be..210703e 100644 (file)
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -3113,10 +3113,12 @@ int mmc_init_device(int num)
        }
 
        m = mmc_get_mmc_dev(dev);
-       m->user_speed_mode = MMC_MODES_END; /* Initialising user set speed mode */
-
        if (!m)
                return 0;
+
+       /* Initialising user set speed mode */
+       m->user_speed_mode = MMC_MODES_END;
+
        if (m->preinit)
                mmc_start_init(m);