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MFC r276825 and r277372:

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Allow a block size of zero to mean 512 bytes, which is the most common
block size for USB disks. This fixes support for "Action Cam SJ4000".
This commit is contained in:
hselasky 2015-01-20 05:00:38 +00:00
parent d8207c1298
commit b34c77d403
1 changed files with 4 additions and 3 deletions
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7
sys/cam/scsi/scsi_da.c
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@ -3098,11 +3098,12 @@ dadone(struct cam_periph *periph, union ccb *done_ccb)
* give them an 'illegal' value we'll avoid that
* here.
*/
if (block_size == 0 && maxsector == 0) {
if (block_size == 0) {
block_size = 512;
maxsector = -1;
if (maxsector == 0)
maxsector = -1;
}
if (block_size >= MAXPHYS || block_size == 0) {
if (block_size >= MAXPHYS) {
xpt_print(periph->path,
"unsupportable block size %ju\n",
(uintmax_t) block_size);