client/gatt: Fix scan-build warning

This fixes the following warning:

client/gatt.c:2146:2: warning: Null pointer passed to 2nd parameter
expecting 'nonnull' [core.NonNullParamChecker]
        memcpy(*dst_value + offset, src_val, src_len);
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Manika Shrivastava <manika.sh@samsung.com>
Signed-off-by: Ayush Garg <ayush.garg@samsung.com>

diff --git a/client/gatt.c b/client/gatt.c
index 0793ec9..c9525f2 100755 (executable)
--- a/client/gatt.c
+++ b/client/gatt.c
@@ -2142,7 +2142,8 @@ static int write_value(size_t *dst_len, uint8_t **dst_value, uint8_t *src_val,
                *dst_value = g_realloc(*dst_value, *dst_len);
        }
 
-       memcpy(*dst_value + offset, src_val, src_len);
+       if (src_val && src_len)
+               memcpy(*dst_value + offset, src_val, src_len);
 
        return 0;
 }