net/nfp: fix memory allocation

If the function actually returns a null value, a null pointer
dereference will occur.

Coverity issue: 195013
Fixes: dd63df2bfff3 ("net/nfp: add NSP symbol resolution command")

Signed-off-by: Alejandro Lucero <alejandro.lucero@netronome.com>

diff --git a/drivers/net/nfp/nfp_nspu.c b/drivers/net/nfp/nfp_nspu.c
index 6ba940c..a2819a1 100644 (file)
--- a/drivers/net/nfp/nfp_nspu.c
+++ b/drivers/net/nfp/nfp_nspu.c
@@ -411,6 +411,9 @@ nfp_nspu_set_bar_from_symbl(nspu_desc_t *desc, const char *symbl,
        int ret = 0;
 
        sym_buf = malloc(desc->buf_size);
+       if (!sym_buf)
+               return -ENOMEM;
+
        strncpy(sym_buf, symbl, strlen(symbl));
        ret = nspu_command(desc, NSP_CMD_GET_SYMBOL, 1, 1, sym_buf,
                           NFP_SYM_DESC_LEN, strlen(symbl));