input: touch: Raydium: fix possible NULL dereference.

Coverity id : 13379

Bug 1416640

Change-Id: I6d895f1a1854ed0ecde46e541c262cb76972c104
Signed-off-by: Jordan Nien <jnien@nvidia.com>
Reviewed-on: http://git-master/r/925392
(cherry picked from commit 09065810ff5a1daf4c8c37cd9c05ee57ed29b6e8)
Reviewed-on: http://git-master/r/928464
Reviewed-by: Sachin Nikam <snikam@nvidia.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/input/touchscreen/rm31080a_ts.c b/drivers/input/touchscreen/rm31080a_ts.c
index b86e479b1..06668f0d1 100644
--- a/drivers/input/touchscreen/rm31080a_ts.c
+++ b/drivers/input/touchscreen/rm31080a_ts.c
@@ -427,9 +427,9 @@ static int rm_tch_spi_burst_write(u8 reg, u8 *txbuf, size_t len)
         u8 *p_u8_Tmp;
         /*to do: check result*/
         p_u8_Tmp = kmalloc(len + 1, GFP_KERNEL);
-        p_u8_Tmp[0] = reg;
         if (p_u8_Tmp == NULL)
                 return -ENOMEM;
+        p_u8_Tmp[0] = reg;
         for (i = 0; i < len; i++)
                 p_u8_Tmp[i + 1] = txbuf[i];
         rm_tch_spi_write(p_u8_Tmp, len + 1);