b43: refuse to load unsupported firmware
[This patch is supposed to be applied in 3.1 (and maybe older) branches only.]
New kernels support newer firmware that users may try to incorrectly use
with older kernels. Display error and explain the problem in such a case
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index b1fe4fe..7c2e09a 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -2401,6 +2401,13 @@
b43_print_fw_helptext(dev->wl, 1);
err = -EOPNOTSUPP;
goto error;
+ } else if (fwrev >= 598) {
+ b43err(dev->wl, "YOUR FIRMWARE IS TOO NEW. Support for "
+ "firmware 598 and up requires kernel 3.2 or newer. You "
+ "have to install older firmware or upgrade kernel.\n");
+ b43_print_fw_helptext(dev->wl, 1);
+ err = -EOPNOTSUPP;
+ goto error;
}
dev->fw.rev = fwrev;
dev->fw.patch = fwpatch;