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dlkm/qpnp-power-on-mmi: change vfs_write to kernel_write

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For linux 5.4, vfs_write will not be used, and it is changed to kernel_write,
so, we add the version judgment for this.

Change-Id: Iec34f046e608ec42436a741784aeeb9a1f46f479
Signed-off-by: weiweij <weiweij@lenovo.com>
Reviewed-on: https://gerrit.mot.com/1806106
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Xiaojun Ji <jixj@motorola.com>
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
weiweij 2020-11-19 09:57:52 +08:00 committed by Huosheng Liao
parent 0b6596414f
commit 84ab605feb
1 changed files with 12 additions and 0 deletions
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12
drivers/input/misc/qpnp_power_on_mmi/qpnp-power-on-mmi.c
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@ -34,6 +34,7 @@
#include <linux/power_supply.h>
#include <linux/reboot.h>
#include <linux/uaccess.h>
#include <linux/version.h>
#define RESET_EXTRA_RESET_KUNPOW_REASON BIT(9)
@ -115,7 +116,11 @@ static int print_blocked_tasks(void)
pr_info("set default console loglevel\n");
cmd = '7';
#if KERNEL_VERSION(5, 4, 0) <= LINUX_VERSION_CODE
written = kernel_write(filep, &cmd, 1, &pos);
#else
written = vfs_write(filep, &cmd, 1, &pos);
#endif
if (written < 1) {
pr_err("failed to write sysrq\n");
rc = -EIO;
@ -123,7 +128,11 @@ static int print_blocked_tasks(void)
pr_info("start to print block task\n");
cmd = 'w';
#if KERNEL_VERSION(5, 4, 0) <= LINUX_VERSION_CODE
written = kernel_write(filep, &cmd, 1, &pos);
#else
written = vfs_write(filep, &cmd, 1, &pos);
#endif
if (written < 1) {
pr_err("failed to write sysrq\n");
rc = -EIO;
@ -241,5 +250,8 @@ static void __exit qpnp_pon_mmi_exit(void)
}
module_exit(qpnp_pon_mmi_exit);
#if KERNEL_VERSION(5, 4, 0) <= LINUX_VERSION_CODE
MODULE_IMPORT_NS(VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver);
#endif
MODULE_DESCRIPTION("QPNP MMI PMIC POWER-ON driver");
MODULE_LICENSE("GPL v2");