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authorChris Ball <cjb@laptop.org>2011-04-13 23:40:30 -0400
committerChris Ball <cjb@laptop.org>2011-05-24 21:01:52 -0400
commit1278dba167f01bb3c6626d16450d31129d041087 (patch)
tree6fb3af716e5437cb558ae37fd8a58db23b9b173e /drivers/mmc/core/sdio_ops.c
parent62929e4be3fe4cc632b3b03645e083c6548de531 (diff)
mmc: initialize struct mmc_command at declaration time
Converts from: struct mmc_command cmd; memset(&cmd, 0, sizeof(struct mmc_command)); to: struct mmc_command cmd = {0}; because it's shorter, as performant, and easier to work out whether initialization has happened. Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/core/sdio_ops.c')
-rw-r--r--drivers/mmc/core/sdio_ops.c11
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/mmc/core/sdio_ops.c b/drivers/mmc/core/sdio_ops.c
index dea36d9c22e6..f77b1bc318ed 100644
--- a/drivers/mmc/core/sdio_ops.c
+++ b/drivers/mmc/core/sdio_ops.c
@@ -21,13 +21,11 @@
int mmc_send_io_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr)
{
- struct mmc_command cmd;
+ struct mmc_command cmd = {0};
int i, err = 0;
BUG_ON(!host);
- memset(&cmd, 0, sizeof(struct mmc_command));
-
cmd.opcode = SD_IO_SEND_OP_COND;
cmd.arg = ocr;
cmd.flags = MMC_RSP_SPI_R4 | MMC_RSP_R4 | MMC_CMD_BCR;
@@ -70,7 +68,7 @@ int mmc_send_io_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr)
static int mmc_io_rw_direct_host(struct mmc_host *host, int write, unsigned fn,
unsigned addr, u8 in, u8 *out)
{
- struct mmc_command cmd;
+ struct mmc_command cmd = {0};
int err;
BUG_ON(!host);
@@ -80,8 +78,6 @@ static int mmc_io_rw_direct_host(struct mmc_host *host, int write, unsigned fn,
if (addr & ~0x1FFFF)
return -EINVAL;
- memset(&cmd, 0, sizeof(struct mmc_command));
-
cmd.opcode = SD_IO_RW_DIRECT;
cmd.arg = write ? 0x80000000 : 0x00000000;
cmd.arg |= fn << 28;
@@ -126,7 +122,7 @@ int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn,
unsigned addr, int incr_addr, u8 *buf, unsigned blocks, unsigned blksz)
{
struct mmc_request mrq;
- struct mmc_command cmd;
+ struct mmc_command cmd = {0};
struct mmc_data data;
struct scatterlist sg;
@@ -141,7 +137,6 @@ int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn,
return -EINVAL;
memset(&mrq, 0, sizeof(struct mmc_request));
- memset(&cmd, 0, sizeof(struct mmc_command));
memset(&data, 0, sizeof(struct mmc_data));
mrq.cmd = &cmd;