The variable u8 **rx_p, is a pointer-to-pointer and hence the check should
be "if (!*rx_p)" and not "if (!rx_p)".
In the earlier version, checkpatch.pl gave the following check, which was
buggy:
CHECK: Comparison to NULL could be written "!rx_p"
+       if (*rx_p == NULL) {

Signed-off-by: Bhaktipriya Shridhar <bhaktipriy...@gmail.com>
---
 Changes in v2:
        -Replaced "if (!rx_p)" with "if (!*rx_p)"
 
 drivers/staging/iio/accel/sca3000_ring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/iio/accel/sca3000_ring.c 
b/drivers/staging/iio/accel/sca3000_ring.c
index 5339b10..1920dc60 100644
--- a/drivers/staging/iio/accel/sca3000_ring.c
+++ b/drivers/staging/iio/accel/sca3000_ring.c
@@ -48,7 +48,7 @@ static int sca3000_read_data(struct sca3000_state *st,
                }
        };
        *rx_p = kmalloc(len, GFP_KERNEL);
-       if (!rx_p) {
+       if (!*rx_p) {
                ret = -ENOMEM;
                goto error_ret;
        }
-- 
2.1.4

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