Staging: rts_pstor: s/rtsx_alloc_dma_buf/kmalloc/

Replace rtsx_alloc_dma_buf() with kfree() back,
chip parameter is not used; remove casts.
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/rts_pstor/ms.c

@@ -863,7 +863,7 @@ static int ms_read_attribute_info(struct rtsx_chip *chip)
 		TRACE_RET(chip, STATUS_FAIL);
 	}
 
-	buf = (u8 *)rtsx_alloc_dma_buf(chip, 64 * 512, GFP_KERNEL);
+	buf = kmalloc(64 * 512, GFP_KERNEL);
 	if (buf == NULL) {
 		TRACE_RET(chip, STATUS_ERROR);
 	}
@@ -3783,7 +3783,7 @@ int mg_get_local_EKB(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		TRACE_RET(chip, STATUS_FAIL);
 	}
 
-	buf = (u8 *)rtsx_alloc_dma_buf(chip, 1540, GFP_KERNEL);
+	buf = kmalloc(1540, GFP_KERNEL);
 	if (!buf) {
 		TRACE_RET(chip, STATUS_ERROR);
 	}
@@ -4021,7 +4021,7 @@ int mg_get_ICV(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		TRACE_RET(chip, STATUS_FAIL);
 	}
 
-	buf = (u8 *)rtsx_alloc_dma_buf(chip, 1028, GFP_KERNEL);
+	buf = kmalloc(1028, GFP_KERNEL);
 	if (!buf) {
 		TRACE_RET(chip, STATUS_ERROR);
 	}
@@ -4080,7 +4080,7 @@ int mg_set_ICV(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		TRACE_RET(chip, STATUS_FAIL);
 	}
 
-	buf = (u8 *)rtsx_alloc_dma_buf(chip, 1028, GFP_KERNEL);
+	buf = kmalloc(1028, GFP_KERNEL);
 	if (!buf) {
 		TRACE_RET(chip, STATUS_ERROR);
 	}

drivers/staging/rts_pstor/rtsx.h

@@ -98,8 +98,6 @@ do {							\
 
 #define SCSI_LUN(srb)		((srb)->device->lun)
 
-#define rtsx_alloc_dma_buf(chip, size, flag)	kmalloc((size), (flag))
-
 typedef unsigned long DELAY_PARA_T;
 
 struct rtsx_chip;

drivers/staging/rts_pstor/spi.c

@@ -505,7 +505,7 @@ int spi_read_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		TRACE_RET(chip, STATUS_FAIL);
 	}
 
-	buf = (u8 *)rtsx_alloc_dma_buf(chip, SF_PAGE_LEN, GFP_KERNEL);
+	buf = kmalloc(SF_PAGE_LEN, GFP_KERNEL);
 	if (buf == NULL)
 		TRACE_RET(chip, STATUS_ERROR);
 
@@ -584,7 +584,7 @@ int spi_write_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	}
 
 	if (program_mode == BYTE_PROGRAM) {
-		buf = rtsx_alloc_dma_buf(chip, 4, GFP_KERNEL);
+		buf = kmalloc(4, GFP_KERNEL);
 		if (!buf)
 			TRACE_RET(chip, STATUS_ERROR);
 
@@ -630,7 +630,7 @@ int spi_write_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
 
-		buf = rtsx_alloc_dma_buf(chip, 4, GFP_KERNEL);
+		buf = kmalloc(4, GFP_KERNEL);
 		if (!buf)
 			TRACE_RET(chip, STATUS_ERROR);
 
@@ -675,7 +675,7 @@ int spi_write_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
 	} else if (program_mode == PAGE_PROGRAM) {
-		buf = rtsx_alloc_dma_buf(chip, SF_PAGE_LEN, GFP_KERNEL);
+		buf = kmalloc(SF_PAGE_LEN, GFP_KERNEL);
 		if (!buf)
 			TRACE_RET(chip, STATUS_NOMEM);
 

drivers/staging/rts_pstor/xd.c

@@ -379,7 +379,7 @@ static void xd_clear_dma_buffer(struct rtsx_chip *chip)
 
 		RTSX_DEBUGP("xD ECC error, dummy write!\n");
 
-		buf = (u8 *)rtsx_alloc_dma_buf(chip, 512, GFP_KERNEL);
+		buf = kmalloc(512, GFP_KERNEL);
 		if (!buf)
 			return;