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nullio_exec_read(): Fix kunmap() argument

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The argument of kunmap() is of type struct page *. Detected by smatch.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5571 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Vladislav Bolkhovitin
2014-06-06 03:22:14 +00:00
parent 44d8f75edb
commit 27fbb23518
1 changed files with 4 additions and 2 deletions
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6
scst/src/dev_handlers/scst_vdisk.c
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@@ -4751,16 +4751,18 @@ static enum compl_status_e nullio_exec_read(struct vdisk_cmd_params *p)
if (virt_dev->read_zero) {
struct scatterlist *sge;
struct page *page;
int i;
void *p;
for_each_sg(cmd->sg, sge, cmd->sg_cnt, i) {
p = kmap(sg_page(sge));
page = sg_page(sge);
p = kmap(page);
if (sge->offset == 0 && sge->length == PAGE_SIZE)
clear_page(p);
else
memset(p + sge->offset, 0, sge->length);
kunmap(p);
kunmap(page);
}
}