ide-floppy/ide_floppy_format_unit: use local buffer
Pass the buffer into ide_floppy_create_format_unit_cmd instead of using
pc->buf.
There should be no functional change resulting from this patch.
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
diff --git a/drivers/ide/ide-floppy_ioctl.c b/drivers/ide/ide-floppy_ioctl.c
index 0d2c9f0..7a03d34 100644
--- a/drivers/ide/ide-floppy_ioctl.c
+++ b/drivers/ide/ide-floppy_ioctl.c
@@ -93,24 +93,25 @@
return 0;
}
-static void ide_floppy_create_format_unit_cmd(struct ide_atapi_pc *pc, int b,
- int l, int flags)
+static void ide_floppy_create_format_unit_cmd(struct ide_atapi_pc *pc,
+ u8 *buf, int b, int l,
+ int flags)
{
ide_init_pc(pc);
pc->c[0] = GPCMD_FORMAT_UNIT;
pc->c[1] = 0x17;
- memset(pc->buf, 0, 12);
- pc->buf[1] = 0xA2;
+ memset(buf, 0, 12);
+ buf[1] = 0xA2;
/* Default format list header, u8 1: FOV/DCRT/IMM bits set */
if (flags & 1) /* Verify bit on... */
- pc->buf[1] ^= 0x20; /* ... turn off DCRT bit */
- pc->buf[3] = 8;
+ buf[1] ^= 0x20; /* ... turn off DCRT bit */
+ buf[3] = 8;
- put_unaligned(cpu_to_be32(b), (unsigned int *)(&pc->buf[4]));
- put_unaligned(cpu_to_be32(l), (unsigned int *)(&pc->buf[8]));
- pc->buf_size = 12;
+ put_unaligned(cpu_to_be32(b), (unsigned int *)(&buf[4]));
+ put_unaligned(cpu_to_be32(l), (unsigned int *)(&buf[8]));
+ pc->req_xfer = 12;
pc->flags |= PC_FLAG_WRITING;
}
@@ -137,6 +138,7 @@
int __user *arg)
{
struct ide_disk_obj *floppy = drive->driver_data;
+ u8 buf[12];
int blocks, length, flags, err = 0;
if (floppy->openers > 1) {
@@ -170,9 +172,9 @@
}
ide_floppy_get_sfrp_bit(drive, pc);
- ide_floppy_create_format_unit_cmd(pc, blocks, length, flags);
+ ide_floppy_create_format_unit_cmd(pc, buf, blocks, length, flags);
- if (ide_queue_pc_tail(drive, floppy->disk, pc, pc->buf, pc->req_xfer))
+ if (ide_queue_pc_tail(drive, floppy->disk, pc, buf, pc->req_xfer))
err = -EIO;
out: