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169f03a064
mmc_sd_num_wr_blocks() has an interesting construction that saves one return argument by casting (u32)-1 as error code if something goes wrong. This is however a bit confusing when the normal kernel pattern is to return an int error code on success. So instead pass a variable "blocks" that the function can fill in with the number of successfully transferred blocks and return an integer as error code. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> [Ulf: Changed a return code to -EIO, reported by Dan Carpenter and fixed by Linus Walleij]