Merge tag 'samsung-dt-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux...

[firefly-linux-kernel-4.4.55.git] / drivers / block / zram / zcomp.c

diff --git a/drivers/block/zram/zcomp.c b/drivers/block/zram/zcomp.c
index 965d1afb0eaa72558a1c6c36869e791733ec7350..5cb13ca3a3acac2aa16a104e9731770066ff03de 100644 (file)
--- a/drivers/block/zram/zcomp.c
+++ b/drivers/block/zram/zcomp.c
@@ -330,12 +330,14 @@ void zcomp_destroy(struct zcomp *comp)
  * allocate new zcomp and initialize it. return compressing
  * backend pointer or ERR_PTR if things went bad. ERR_PTR(-EINVAL)
  * if requested algorithm is not supported, ERR_PTR(-ENOMEM) in
- * case of allocation error.
+ * case of allocation error, or any other error potentially
+ * returned by functions zcomp_strm_{multi,single}_create.
  */
 struct zcomp *zcomp_create(const char *compress, int max_strm)
 {
        struct zcomp *comp;
        struct zcomp_backend *backend;
+       int error;
 
        backend = find_backend(compress);
        if (!backend)
@@ -347,12 +349,12 @@ struct zcomp *zcomp_create(const char *compress, int max_strm)
 
        comp->backend = backend;
        if (max_strm > 1)
-               zcomp_strm_multi_create(comp, max_strm);
+               error = zcomp_strm_multi_create(comp, max_strm);
        else
-               zcomp_strm_single_create(comp);
-       if (!comp->stream) {
+               error = zcomp_strm_single_create(comp);
+       if (error) {
                kfree(comp);
-               return ERR_PTR(-ENOMEM);
+               return ERR_PTR(error);
        }
        return comp;
 }