[PATCH] tools/bpftool: silence a static check warning

[Dan Carpenter <dan.carpenter@xxxxxxxxxx>]

There is a static checker warning that proglen has an upper bound but no
lower bound.  The allocation will just fail harmlessly so it's not a big
deal.

Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

diff --git a/tools/bpf/bpf_jit_disasm.c b/tools/bpf/bpf_jit_disasm.c
index 30044bc4f389..2d7bb5dc0b8c 100644
--- a/tools/bpf/bpf_jit_disasm.c
+++ b/tools/bpf/bpf_jit_disasm.c
@@ -205,7 +205,7 @@ static uint8_t *get_last_jit_image(char *haystack, size_t hlen,
 		regfree(&regex);
 		return NULL;
 	}
-	if (proglen > 1000000) {
+	if (proglen < 0 || proglen > 1000000) {
 		printf("proglen of %d too big, stopping\n", proglen);
 		return NULL;
 	}
--
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