From: Jean Delvare <khali@linux-fr.org>
To: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Cc: Jiri Kosina <jkosina@suse.cz>,
linux-input@vger.kernel.org, linux-i2c@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 09/14] HID: i2c-hid: i2c_hid_get_report may fail
Date: Wed, 5 Dec 2012 10:59:17 +0100 [thread overview]
Message-ID: <20121205105917.291f483f@endymion.delvare> (raw)
In-Reply-To: <1354634875-5182-10-git-send-email-benjamin.tissoires@gmail.com>
On Tue, 4 Dec 2012 16:27:50 +0100, Benjamin Tissoires wrote:
> If i2c_hid_get_report fails, exit i2c_hid_init_report.
> The printk log is already called by i2c_hid_get_report, so no need
> to add some more printks.
>
> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
> ---
> drivers/hid/i2c-hid/i2c-hid.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
> index da04948..dcacfc4 100644
> --- a/drivers/hid/i2c-hid/i2c-hid.c
> +++ b/drivers/hid/i2c-hid/i2c-hid.c
> @@ -400,9 +400,10 @@ static void i2c_hid_init_report(struct hid_report *report, u8 *buffer,
> unsigned int size, ret_size;
>
> size = i2c_hid_get_report_length(report);
> - i2c_hid_get_report(client,
> + if (i2c_hid_get_report(client,
> report->type == HID_FEATURE_REPORT ? 0x03 : 0x01,
> - report->id, buffer, size);
> + report->id, buffer, size))
> + return;
>
> i2c_hid_dbg(ihid, "report (len=%d): %*ph\n", size, size, ihid->inbuf);
>
OK, although I don't quite get the rationale for not reporting the
errors from i2c_hid_init_report() and i2c_hid_init_reports() to their
respective callers. Does the device have any chance to work properly if
i2c_hid_init_reports() fails?
Reviewed-by: Jean Delvare <khali@linux-fr.org>
--
Jean Delvare
next prev parent reply other threads:[~2012-12-05 9:59 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-04 15:27 [PATCH 00/14] i2c-hid cleanup and bug fixes Benjamin Tissoires
2012-12-04 15:27 ` [PATCH 01/14] HID: i2c-hid: change I2C name Benjamin Tissoires
2012-12-04 16:07 ` Jean Delvare
2012-12-05 9:52 ` Jiri Kosina
2012-12-04 15:27 ` [PATCH 02/14] HID: i2c-hid: fix memory corruption due to missing hid declaration Benjamin Tissoires
2012-12-04 21:42 ` Jean Delvare
2012-12-05 10:10 ` Benjamin Tissoires
2012-12-05 10:13 ` Jiri Kosina
2012-12-04 15:27 ` [PATCH 03/14] HID: i2c-hid: enhance Kconfig Benjamin Tissoires
2012-12-04 21:43 ` Jean Delvare
2012-12-05 9:55 ` Jiri Kosina
2012-12-04 15:27 ` [PATCH 04/14] HID: i2c-hid: fix checkpatch.pl warning Benjamin Tissoires
2012-12-04 21:43 ` Jean Delvare
2012-12-05 9:55 ` Jiri Kosina
2012-12-04 15:27 ` [PATCH 05/14] HID: i2c-hid: fix i2c_hid_dbg macro Benjamin Tissoires
2012-12-04 21:49 ` Jean Delvare
2012-12-05 9:56 ` Jiri Kosina
2012-12-04 15:27 ` [PATCH 06/14] HID: i2c-hid: remove unused static declarations Benjamin Tissoires
2012-12-04 21:51 ` Jean Delvare
2012-12-05 10:03 ` Jiri Kosina
2012-12-04 15:27 ` [PATCH 07/14] HID: i2c-hid: fix return paths Benjamin Tissoires
2012-12-05 9:47 ` Jean Delvare
2012-12-05 10:05 ` Jiri Kosina
2012-12-04 15:27 ` [PATCH 08/14] HID: i2c-hid: fix error messages Benjamin Tissoires
2012-12-05 9:51 ` Jean Delvare
2012-12-05 10:07 ` Jiri Kosina
2012-12-04 15:27 ` [PATCH 09/14] HID: i2c-hid: i2c_hid_get_report may fail Benjamin Tissoires
2012-12-05 9:59 ` Jean Delvare [this message]
2012-12-05 10:07 ` Benjamin Tissoires
2012-12-05 10:28 ` Jiri Kosina
2012-12-04 15:27 ` [PATCH 10/14] HID: i2c-hid: reorder allocation/free of buffers Benjamin Tissoires
2012-12-05 10:10 ` Jean Delvare
2012-12-05 10:12 ` Benjamin Tissoires
2012-12-04 15:27 ` [PATCH 11/14] HID: i2c-hid: remove unneeded test in i2c_hid_remove Benjamin Tissoires
2012-12-05 10:13 ` Jean Delvare
2012-12-05 10:30 ` Jiri Kosina
2012-12-04 15:27 ` [PATCH 12/14] HID: i2c-hid: remove extra .irq field in struct i2c_hid Benjamin Tissoires
2012-12-05 10:29 ` Jean Delvare
2012-12-04 15:27 ` [PATCH 13/14] HID: i2c-hid: also call i2c_hid_free_buffers in i2c_hid_remove Benjamin Tissoires
2012-12-05 10:27 ` Jiri Kosina
2012-12-05 10:32 ` Jean Delvare
2012-12-04 15:27 ` [PATCH 14/14] HID: i2c-hid: fix i2c_hid_get_raw_report count mismatches Benjamin Tissoires
2012-12-05 10:40 ` Benjamin Tissoires
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