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Groups > linux.kernel > #1592977 > unrolled thread
| Started by | Arvind Yadav <arvind.yadav.cs@gmail.com> |
|---|---|
| First post | 2017-03-06 08:50 +0100 |
| Last post | 2017-03-06 10:00 +0100 |
| Articles | 2 — 2 participants |
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[PATCH] x86: thinkpad_acpi: Handle return error. Arvind Yadav <arvind.yadav.cs@gmail.com> - 2017-03-06 08:50 +0100
Re: [PATCH] x86: thinkpad_acpi: Handle return error. Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-03-06 10:00 +0100
| From | Arvind Yadav <arvind.yadav.cs@gmail.com> |
|---|---|
| Date | 2017-03-06 08:50 +0100 |
| Subject | [PATCH] x86: thinkpad_acpi: Handle return error. |
| Message-ID | <thVz3-4Q2-7@gated-at.bofh.it> |
This patch is for handling a return error. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> --- drivers/platform/x86/thinkpad_acpi.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 1d18b32..19ad3ec 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -1237,9 +1237,11 @@ static int tpacpi_rfk_hook_set_block(void *data, bool blocked) /* try to set radio state */ res = (tp_rfk->ops->set_status)(blocked ? TPACPI_RFK_RADIO_OFF : TPACPI_RFK_RADIO_ON); + if (res < 0) + return res; /* and update the rfkill core with whatever the FW really did */ - tpacpi_rfk_update_swstate(tp_rfk); + res = tpacpi_rfk_update_swstate(tp_rfk); return (res < 0) ? res : 0; } @@ -1371,7 +1373,10 @@ static ssize_t tpacpi_rfk_sysfs_enable_store(const enum tpacpi_rfk_id id, res = tpacpi_rfkill_switches[id]->ops->set_status((!!t) ? TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF); - tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); + if (res < 0) + return res; + + res = tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); return (res < 0) ? res : count; } @@ -1427,7 +1432,9 @@ static int tpacpi_rfk_procfs_write(const enum tpacpi_rfk_id id, char *buf) "enable" : "disable", tpacpi_rfkill_names[id]); res = (tpacpi_rfkill_switches[id]->ops->set_status)(status); - tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); + if (res < 0) + return res; + res = tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); } return res; @@ -3517,6 +3524,8 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) if (tp_features.hotkey_wlsw) res = add_to_attr_set(hotkey_dev_attributes, &dev_attr_hotkey_radio_sw.attr); + if (res) + goto err_exit; res = hotkey_init_tablet_mode(); if (res < 0) -- 1.9.1
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| From | Andy Shevchenko <andy.shevchenko@gmail.com> |
|---|---|
| Date | 2017-03-06 10:00 +0100 |
| Message-ID | <thWEO-5Iw-17@gated-at.bofh.it> |
| In reply to | #1592977 |
On Mon, Mar 6, 2017 at 9:43 AM, Arvind Yadav <arvind.yadav.cs@gmail.com> wrote: > This patch is for handling a return error. > > Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> > --- > drivers/platform/x86/thinkpad_acpi.c | 15 ++++++++++++--- > 1 file changed, 12 insertions(+), 3 deletions(-) > > diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c > index 1d18b32..19ad3ec 100644 > --- a/drivers/platform/x86/thinkpad_acpi.c > +++ b/drivers/platform/x86/thinkpad_acpi.c > @@ -1237,9 +1237,11 @@ static int tpacpi_rfk_hook_set_block(void *data, bool blocked) > /* try to set radio state */ > res = (tp_rfk->ops->set_status)(blocked ? > TPACPI_RFK_RADIO_OFF : TPACPI_RFK_RADIO_ON); Just in case: first parens are redundant here. > + if (res < 0) > + return res; So, this changes behaviour. Before we call _rfk_update_swstate() independently on error code. Care to explain in commit message how this change does / does not affect overall user experience? > /* and update the rfkill core with whatever the FW really did */ > - tpacpi_rfk_update_swstate(tp_rfk); > + res = tpacpi_rfk_update_swstate(tp_rfk); > > return (res < 0) ? res : 0; > } > @@ -3517,6 +3524,8 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) > if (tp_features.hotkey_wlsw) > res = add_to_attr_set(hotkey_dev_attributes, > &dev_attr_hotkey_radio_sw.attr); > + if (res) > + goto err_exit; > > res = hotkey_init_tablet_mode(); > if (res < 0) Ditto for hotkey_init_tablet_mode(). -- With Best Regards, Andy Shevchenko
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