linux/drivers/mmc
Kuninori Morimoto 087de9ed3d mmc: cast unsigned int to typeof(sector_t) to avoid unexpected error
card->csd.capacity is defined as "unsigned int", and sector_t is defined as
"u64" or "unsigned long" (depends on CONFIG_LBDAF). Thus, sector_t data
might have strange data (see below). This patch cast it to typeof(sector_t)
Special thanks to coverity <http://www.coverity.com>

ex) if sector_t was u64

        unsigned int data;
        sector_t sector;

        data = 0x800000;
        sector = (data << 8); // 0xffffffff80000000
        sector = (((typeof(sector_t))data) << 8); // 0x80000000

or

        data = 0x80000000;
        sector = (data << 8); // 0x0
        sector = (((typeof(sector_t))data) << 8); // 0x8000000000

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01 09:07:03 +02:00
..
card mmc: cast unsigned int to typeof(sector_t) to avoid unexpected error 2015-06-01 09:07:03 +02:00
core mmc: cast u8 to unsigned long long to avoid unexpected error 2015-06-01 09:07:03 +02:00
host mmc: host: sdhci: Use BUG_ON() 2015-06-01 09:07:02 +02:00
Kconfig
Makefile mmc: sdhci-pci: add platform data 2012-01-11 23:58:47 -05:00