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| author | Julia Lawall <Julia.Lawall@lip6.fr> | 2012-04-15 11:27:12 +0200 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-04-17 00:29:32 -0400 |
| commit | 6b5e7d9ef793c55d72679f058514f33c4258f286 (patch) | |
| tree | bf1141323d954701cabe8059f3afbabd813da813 /drivers/xen/grant-table.c | |
| parent | f09d8432e39797abf39531f41ac8a46a3fbf442a (diff) | |
| download | lwn-6b5e7d9ef793c55d72679f058514f33c4258f286.tar.gz lwn-6b5e7d9ef793c55d72679f058514f33c4258f286.zip | |
xen/grant-table: add error-handling code on failure of gnttab_resume
Jump to the label ini_nomem as done on the failure of the page allocations
above.
The code at ini_nomem is modified to accommodate different return values.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/xen/grant-table.c')
| -rw-r--r-- | drivers/xen/grant-table.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c index 1cd94daa71db..f805918a993f 100644 --- a/drivers/xen/grant-table.c +++ b/drivers/xen/grant-table.c @@ -1026,6 +1026,7 @@ int gnttab_init(void) int i; unsigned int max_nr_glist_frames, nr_glist_frames; unsigned int nr_init_grefs; + int ret; nr_grant_frames = 1; boot_max_nr_grant_frames = __max_nr_grant_frames(); @@ -1044,12 +1045,16 @@ int gnttab_init(void) nr_glist_frames = (nr_grant_frames * GREFS_PER_GRANT_FRAME + RPP - 1) / RPP; for (i = 0; i < nr_glist_frames; i++) { gnttab_list[i] = (grant_ref_t *)__get_free_page(GFP_KERNEL); - if (gnttab_list[i] == NULL) + if (gnttab_list[i] == NULL) { + ret = -ENOMEM; goto ini_nomem; + } } - if (gnttab_resume() < 0) - return -ENODEV; + if (gnttab_resume() < 0) { + ret = -ENODEV; + goto ini_nomem; + } nr_init_grefs = nr_grant_frames * GREFS_PER_GRANT_FRAME; @@ -1067,7 +1072,7 @@ int gnttab_init(void) for (i--; i >= 0; i--) free_page((unsigned long)gnttab_list[i]); kfree(gnttab_list); - return -ENOMEM; + return ret; } EXPORT_SYMBOL_GPL(gnttab_init); |