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power: reset: qcom-dload-mode: nodump mode error handling

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In case nodump mode is already set, do not allow user to
change dump mode to other modes now.

Change-Id: I25b9e0d20b4dca2fb19d22f225a3dd9f0ea66cc5
Signed-off-by: Khaja Hussain Shaik Khaji <quic_kshaikkh@quicinc.com>
This commit is contained in:
Khaja Hussain Shaik Khaji 2024-06-21 00:39:41 +05:30
commit cef0450861
1 changed files with 15 additions and 0 deletions
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15
drivers/power/reset/qcom-dload-mode.c
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@ -219,6 +219,17 @@ static ssize_t dload_mode_store(struct kobject *kobj,
const char *buf, size_t count)
{
enum qcom_download_mode mode;
#ifdef CONFIG_POWER_RESET_QCOM_DOWNLOAD_MODE_NODUMP
int temp;
dump_mode = qcom_scm_get_download_mode(&temp, 0) ? dump_mode : temp;
if (dump_mode == QCOM_DOWNLOAD_NODUMP) {
pr_err("%s: Current dump mode already set: nodump\n", __func__);
pr_err("%s: Changing dump mode now is not allowed, reboot the device\n", __func__);
return -EINVAL;
}
#endif
if (sysfs_streq(buf, "full"))
mode = QCOM_DOWNLOAD_FULLDUMP;
@ -234,7 +245,11 @@ static ssize_t dload_mode_store(struct kobject *kobj,
#endif
else {
pr_err("Invalid dump mode request...\n");
#ifdef CONFIG_POWER_RESET_QCOM_DOWNLOAD_MODE_NODUMP
pr_err("Supported dumps: 'full', 'mini', 'both' or 'nodump'\n");
#else
pr_err("Supported dumps: 'full', 'mini', or 'both'\n");
#endif
return -EINVAL;
}