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| author | Michael Buesch <m@bues.ch> | 2021-05-15 22:02:52 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-20 17:15:42 +0300 |
| commit | 0036a22e5ed52cc9ff101b21db7b235b99586325 (patch) | |
| tree | 6fcfa15d1081a72af812c63cbc84c74886c046d1 /drivers/ssb | |
| parent | 15e84bbbea55c977db1524122d4c0272bf732f3c (diff) | |
| download | linux-0036a22e5ed52cc9ff101b21db7b235b99586325.tar.xz | |
ssb: sdio: Don't overwrite const buffer if block_write fails
commit 47ec636f7a25aa2549e198c48ecb6b1c25d05456 upstream.
It doesn't make sense to clobber the const driver-side buffer, if a
write-to-device attempt failed. All other SSB variants (PCI, PCMCIA and SoC)
also don't corrupt the buffer on any failure in block_write.
Therefore, remove this memset from the SDIO variant.
Signed-off-by: Michael Büsch <m@bues.ch>
Cc: stable@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210515210252.318be2ba@wiggum
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/ssb')
| -rw-r--r-- | drivers/ssb/sdio.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/ssb/sdio.c b/drivers/ssb/sdio.c index 7fe0afb42234..66c5c2169704 100644 --- a/drivers/ssb/sdio.c +++ b/drivers/ssb/sdio.c @@ -411,7 +411,6 @@ static void ssb_sdio_block_write(struct ssb_device *dev, const void *buffer, sdio_claim_host(bus->host_sdio); if (unlikely(ssb_sdio_switch_core(bus, dev))) { error = -EIO; - memset((void *)buffer, 0xff, count); goto err_out; } offset |= bus->sdio_sbaddr & 0xffff; |