lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Mon, 16 May 2016 18:15:21 -0700 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Jarkko Nikula <jarkko.nikula@...ux.intel.com>, Mark Brown <broonie@...nel.org> Subject: [PATCH 4.4 51/73] spi: pxa2xx: Do not detect number of enabled chip selects on Intel SPT 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jarkko Nikula <jarkko.nikula@...ux.intel.com> commit 66ec246eb9982e7eb8e15e1fc55f543230310dd0 upstream. Certain Intel Sunrisepoint PCH variants report zero chip selects in SPI capabilities register even they have one per port. Detection in pxa2xx_spi_probe() sets master->num_chipselect to 0 leading to -EINVAL from spi_register_master() where chip select count is validated. Fix this by not using SPI capabilities register on Sunrisepoint. They don't have more than one chip select so use the default value 1 instead of detection. Fixes: 8b136baa5892 ("spi: pxa2xx: Detect number of enabled Intel LPSS SPI chip select signals") Signed-off-by: Jarkko Nikula <jarkko.nikula@...ux.intel.com> Signed-off-by: Mark Brown <broonie@...nel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/spi/spi-pxa2xx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -111,7 +111,7 @@ static const struct lpss_config lpss_pla .reg_general = -1, .reg_ssp = 0x20, .reg_cs_ctrl = 0x24, - .reg_capabilities = 0xfc, + .reg_capabilities = -1, .rx_threshold = 1, .tx_threshold_lo = 32, .tx_threshold_hi = 56,
Powered by blists - more mailing lists