ft2232: remove ft2232_large_scan memory leak

This is a very long outstanding issue see:
http://lists.berlios.de/pipermail/openocd-development/2011-June/019404.html

As this driver is deprecated the fix is added to purely to reduce the warnings
reported by clang.

Change-Id: I3a16a704e0e8db27efda50fdcfdd35abf5ebed0f
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/1278
Tested-by: jenkins

diff --git a/src/jtag/drivers/ft2232.c b/src/jtag/drivers/ft2232.c
index 4b3360fe701bb92bf1d4c690c469e5930633c60d..fed829856036d17c2eec0ef8f80a656b7dba1eb3 100644 (file)
--- a/src/jtag/drivers/ft2232.c
+++ b/src/jtag/drivers/ft2232.c
@@ -1108,6 +1108,11 @@ static int ft2232_large_scan(struct scan_command *cmd,
        int retval;
        int thisrun_read = 0;
 
+       if (!receive_buffer) {
+               LOG_ERROR("failed to allocate memory");
+               exit(-1);
+       }
+
        if (cmd->ir_scan) {
                LOG_ERROR("BUG: large IR scans are not supported");
                exit(-1);
@@ -1273,6 +1278,8 @@ static int ft2232_large_scan(struct scan_command *cmd,
                        (int)bytes_read);
        }
 
+       free(receive_buffer);
+
        return ERROR_OK;
 }