Messages in this thread Patch in this message | | | Subject | [PATCH 08/18] HID: Adjust five checks for null pointers | From | SF Markus Elfring <> | Date | Tue, 7 Feb 2017 20:50:24 +0100 |
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From: Markus Elfring <elfring@users.sourceforge.net> Date: Tue, 7 Feb 2017 19:15:21 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit
The script "checkpatch.pl" pointed information out like the following.
Comparison to NULL could be written !…
Thus fix affected source code places.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> --- drivers/hid/hid-core.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 1f75c1c022f0..f4ea3590954c 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -959,7 +959,7 @@ int hid_open_report(struct hid_device *device) size = device->dev_rsize; buf = kmemdup(start, size, GFP_KERNEL); - if (buf == NULL) + if (!buf) return -ENOMEM; if (device->driver->report_fixup) @@ -969,7 +969,7 @@ int hid_open_report(struct hid_device *device) start = kmemdup(start, size, GFP_KERNEL); kfree(buf); - if (start == NULL) + if (!start) return -ENOMEM; device->rdesc = start; @@ -1414,7 +1414,7 @@ static struct hid_report *hid_get_report(struct hid_report_enum *report_enum, n = *data; report = report_enum->report_id_hash[n]; - if (report == NULL) + if (!report) dbg_hid("undefined report_id %u received\n", n); return report; @@ -2222,7 +2222,7 @@ static int hid_device_probe(struct device *dev) if (!hdev->driver) { id = hid_match_device(hdev, hdrv); - if (id == NULL) { + if (!id) { ret = -ENODEV; goto unlock; } @@ -2719,7 +2719,7 @@ struct hid_device *hid_allocate_device(void) int ret = -ENOMEM; hdev = kzalloc(sizeof(*hdev), GFP_KERNEL); - if (hdev == NULL) + if (!hdev) return ERR_PTR(ret); device_initialize(&hdev->dev); -- 2.11.1
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