[17/26] b43: refuse to load unsupported firmware
From: Greg KH <gregkh@suse.de>
Date: 2011-11-19 00:09:52
Also in:
lkml, stable
From: Greg KH <gregkh@suse.de>
Date: 2011-11-19 00:09:52
Also in:
lkml, stable
3.1-stable review patch. If anyone has any objections, please let me know. ------------------ [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: Rafa�� Mi��ecki <zajec5@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> --- drivers/net/wireless/b43/main.c | 7 +++++++ 1 file changed, 7 insertions(+)
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c@@ -2508,6 +2508,13 @@ static int b43_upload_microcode(struct b 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;