Module Name:    src
Committed By:   jmcneill
Date:           Sun Jan 11 14:19:09 UTC 2015

Modified Files:
        src/sys/dev/usb: if_urtwn.c

Log Message:
Pass the correct length to firmware_free. The code previously did
len = firmware_get_size(..) and then used len as a counter while loading
firmware. The result was that in the success path, len = 0. This commit
introduces a new "fwlen" (const) to store the firmware size, and passes it
to firmware_free instead of "len".


To generate a diff of this commit:
cvs rdiff -u -r1.35 -r1.36 src/sys/dev/usb/if_urtwn.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/dev/usb/if_urtwn.c
diff -u src/sys/dev/usb/if_urtwn.c:1.35 src/sys/dev/usb/if_urtwn.c:1.36
--- src/sys/dev/usb/if_urtwn.c:1.35	Wed Jan  7 07:05:48 2015
+++ src/sys/dev/usb/if_urtwn.c	Sun Jan 11 14:19:09 2015
@@ -1,4 +1,4 @@
-/*	$NetBSD: if_urtwn.c,v 1.35 2015/01/07 07:05:48 ozaki-r Exp $	*/
+/*	$NetBSD: if_urtwn.c,v 1.36 2015/01/11 14:19:09 jmcneill Exp $	*/
 /*	$OpenBSD: if_urtwn.c,v 1.20 2011/11/26 06:39:33 ckuethe Exp $	*/
 
 /*-
@@ -23,7 +23,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_urtwn.c,v 1.35 2015/01/07 07:05:48 ozaki-r Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_urtwn.c,v 1.36 2015/01/11 14:19:09 jmcneill Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_inet.h"
@@ -3072,7 +3072,7 @@ urtwn_load_firmware(struct urtwn_softc *
 		    error);
 		return (error);
 	}
-	len = firmware_get_size(fwh);
+	const size_t fwlen = len = firmware_get_size(fwh);
 	fw = firmware_malloc(len);
 	if (fw == NULL) {
 		aprint_error_dev(sc->sc_dev,
@@ -3085,7 +3085,7 @@ urtwn_load_firmware(struct urtwn_softc *
 	if (error != 0) {
 		aprint_error_dev(sc->sc_dev,
 		    "failed to read firmware (error %d)\n", error);
-		firmware_free(fw, len);
+		firmware_free(fw, fwlen);
 		return (error);
 	}
 
@@ -3175,7 +3175,7 @@ urtwn_load_firmware(struct urtwn_softc *
 		goto fail;
 	}
  fail:
-	firmware_free(fw, len);
+	firmware_free(fw, fwlen);
 	return (error);
 }
 

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