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From: Todd Poynor <toddpoynor@gmail.com>
To: Rob Springer <rspringer@google.com>,
	Ben Chan <benchan@chromium.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org,
	Todd Poynor <toddpoynor@google.com>
Subject: [PATCH 02/11] staging: gasket: page table: return valid error code on map fail
Date: Sun, 14 Oct 2018 21:59:18 -0700	[thread overview]
Message-ID: <20181015045927.156790-3-toddpoynor@gmail.com> (raw)
In-Reply-To: <20181015045927.156790-1-toddpoynor@gmail.com>

From: Todd Poynor <toddpoynor@google.com>

Return -EINVAL on mapping failures, instead of -1, which triggers a
checkpatch error.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
---
 drivers/staging/gasket/gasket_page_table.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/gasket/gasket_page_table.c b/drivers/staging/gasket/gasket_page_table.c
index 964146f0df526..2e1de8ad4a2c6 100644
--- a/drivers/staging/gasket/gasket_page_table.c
+++ b/drivers/staging/gasket/gasket_page_table.c
@@ -514,13 +514,12 @@ static int gasket_perform_mapping(struct gasket_page_table *pg_tbl,
 					(void *)page_to_pfn(page),
 					(void *)page_to_phys(page));
 
-				/* clean up */
 				if (gasket_release_page(ptes[i].page))
 					--pg_tbl->num_active_pages;
 
 				memset(&ptes[i], 0,
 				       sizeof(struct gasket_page_table_entry));
-				return -1;
+				return -EINVAL;
 			}
 		}
 
@@ -1165,7 +1164,7 @@ int gasket_page_table_lookup_page(
 	*ppage = NULL;
 	*poffset = 0;
 	mutex_unlock(&pg_tbl->mutex);
-	return -1;
+	return -EINVAL;
 }
 
 /* See gasket_page_table.h for description. */
-- 
2.19.0.605.g01d371f741-goog


  parent reply	other threads:[~2018-10-15  5:00 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-15  4:59 [PATCH 00/11] staging: gasket: fixes Todd Poynor
2018-10-15  4:59 ` [PATCH 01/11] staging: gasket: core: debug log updates Todd Poynor
2018-10-15  7:34   ` Greg Kroah-Hartman
2018-10-15 20:33     ` Todd Poynor
2018-10-15  4:59 ` Todd Poynor [this message]
2018-10-15  4:59 ` [PATCH 03/11] staging: gasket: page table: remove dead code in coherent mem alloc Todd Poynor
2018-10-15  4:59 ` [PATCH 04/11] staging: gasket: page_table: remove unnecessary PTE status set to free Todd Poynor
2018-10-15  4:59 ` [PATCH 05/11] staging: gasket: page_table: rearrange gasket_page_table_entry Todd Poynor
2018-10-15  7:37   ` Greg Kroah-Hartman
2018-10-15  4:59 ` [PATCH 06/11] staging: gasket: page table: fixup error path allocating coherent mem Todd Poynor
2018-10-15  4:59 ` [PATCH 07/11] staging: gasket: page_table: fix comment in components_to_dev_address Todd Poynor
2018-10-15  4:59 ` [PATCH 08/11] staging: gasket: page_table: simplify gasket_components_to_dev_address Todd Poynor
2018-10-15  4:59 ` [PATCH 09/11] staging: gasket: apex: fix sysfs_show Todd Poynor
2018-10-15  4:59 ` [PATCH 10/11] staging: gasket: sysfs: fix attribute release comment Todd Poynor
2018-10-15  4:59 ` [PATCH 11/11] staging: gasket: Update device virtual address comment Todd Poynor
2018-10-15  7:33 ` [PATCH 00/11] staging: gasket: fixes Greg Kroah-Hartman
2018-10-15 10:19   ` Todd Poynor
2018-10-15 10:29 ` Christoph Hellwig
2018-10-15 10:35   ` Greg Kroah-Hartman

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