Hi Oliver: I will fix it. Should I resend all three patches, or just this one? BR, Wei WANG 于 2012年07月19日 20:26, Oliver Neukum 写道: > On Thursday 19 July 2012 17:55:18 wei_wang@xxxxxxxxxxxxxx wrote: > >> +static void sd_normal_rw(struct realtek_sdmmc *host, struct mmc_request *mrq) >> +{ >> + struct mmc_command *cmd = mrq->cmd; >> + struct mmc_data *data = mrq->data; >> + u8 _cmd[5], *buf; >> + >> + _cmd[0] = 0x40 | (u8)cmd->opcode; >> + _cmd[1] = (u8)(cmd->arg >> 24); >> + _cmd[2] = (u8)(cmd->arg >> 16); >> + _cmd[3] = (u8)(cmd->arg >> 8); >> + _cmd[4] = (u8)cmd->arg; > Please use the predefined macro for endianness conversion. > >> + buf = kzalloc(data->blksz, GFP_KERNEL); > 1. You must handle a failure to allocate a buffer > 2. You must use GFP_NOIO as you are in a block driver > > Regards > Oliver > _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel