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| author | Suman Anna <s-anna@ti.com> | 2016-04-04 17:46:19 -0500 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2016-04-05 17:53:20 +0200 |
| commit | 7c1ab60008755fc229b623a875f1e42de31cdb64 (patch) | |
| tree | 1d9b7e7f5ea5e4d830018a074768d16252bab8eb | |
| parent | 521f40823ebf2818045546d45aa378eba1c41717 (diff) | |
| download | linux-7c1ab60008755fc229b623a875f1e42de31cdb64.tar.bz2 | |
iommu/omap: Replace BUG() in iopgtable_store_entry_core()
The iopgtable_store_entry_core() function uses a BUG() statement
for an unsupported page size entry programming. Replace this with
a less severe WARN_ON() and perform a graceful bailout on error.
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
| -rw-r--r-- | drivers/iommu/omap-iommu.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c index c05d48f88596..f6cf728ee32a 100644 --- a/drivers/iommu/omap-iommu.c +++ b/drivers/iommu/omap-iommu.c @@ -628,10 +628,12 @@ iopgtable_store_entry_core(struct omap_iommu *obj, struct iotlb_entry *e) break; default: fn = NULL; - BUG(); break; } + if (WARN_ON(!fn)) + return -EINVAL; + prot = get_iopte_attr(e); spin_lock(&obj->page_table_lock); |