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| author | Rafał Miłecki <zajec5@gmail.com> | 2011-11-08 17:15:03 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-21 14:31:22 -0800 |
| commit | 91ed232dabe5c813aa506c218223a484e78092eb (patch) | |
| tree | cdcdbe4afc7c0c7780d6a5255b9123249e5f79ba | |
| parent | 54e6e8d507358facee8b7f5dca27231914676fd8 (diff) | |
| download | lwn-91ed232dabe5c813aa506c218223a484e78092eb.tar.gz lwn-91ed232dabe5c813aa506c218223a484e78092eb.zip | |
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>
| -rw-r--r-- | drivers/net/wireless/b43/main.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index b1fe4fe322a5..7c2e09a1cc04 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -2401,6 +2401,13 @@ static int b43_upload_microcode(struct b43_wldev *dev) 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; |