kernel/memremap: Remove stale devres_free() call

devm_memremap_pages() was re-worked in e8d513483300 "memremap: change
devm_memremap_pages interface to use struct dev_pagemap" to take a
caller allocated struct dev_pagemap as a function parameter. A call to
devres_free() was left in the error cleanup path which results in a
kernel panic if the remap fails for some reason. Remove it to fix the
panic and let devm_memremap_pages() fail gracefully.

Fixes: e8d513483300 ("memremap: change devm_memremap_pages interface...")
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

diff --git a/kernel/memremap.c b/kernel/memremap.c
index 4dd4274cabe252ecaa64e1c9a5a9d4f5478f1e24..895e6b76b25e0604b980e31fa8dba388b25e6581 100644 (file)
--- a/kernel/memremap.c
+++ b/kernel/memremap.c
@@ -427,7 +427,6 @@ void *devm_memremap_pages(struct device *dev, struct dev_pagemap *pgmap)
  err_pfn_remap:
  err_radix:
        pgmap_radix_release(res, pgoff);
-       devres_free(pgmap);
        return ERR_PTR(error);
 }
 EXPORT_SYMBOL(devm_memremap_pages);