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61 lines
1.8 KiB
Diff
61 lines
1.8 KiB
Diff
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From 458f66c30df2b8495790cf6fca76ebad44046921 Mon Sep 17 00:00:00 2001
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From: Dmitry Antipov <dmantipov@yandex.ru>
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Date: Thu, 21 Sep 2023 11:16:57 +0300
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Subject: [PATCH] wifi: ath11k: use kstrtoul_from_user() where appropriate
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Use 'kstrtoul_from_user()' in 'ath11k_write_file_spectral_count()'
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and 'ath11k_write_file_spectral_bins()'
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Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
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Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
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Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
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Link: https://lore.kernel.org/r/20230824075121.121144-4-dmantipov@yandex.ru
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---
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drivers/net/wireless/ath/ath11k/spectral.c | 26 +++++++---------------
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1 file changed, 8 insertions(+), 18 deletions(-)
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--- a/drivers/net/wireless/ath/ath11k/spectral.c
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+++ b/drivers/net/wireless/ath/ath11k/spectral.c
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@@ -386,16 +386,11 @@ static ssize_t ath11k_write_file_spectra
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{
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struct ath11k *ar = file->private_data;
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unsigned long val;
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- char buf[32];
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- ssize_t len;
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-
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- len = min(count, sizeof(buf) - 1);
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- if (copy_from_user(buf, user_buf, len))
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- return -EFAULT;
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+ ssize_t ret;
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- buf[len] = '\0';
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- if (kstrtoul(buf, 0, &val))
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- return -EINVAL;
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+ ret = kstrtoul_from_user(user_buf, count, 0, &val);
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+ if (ret)
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+ return ret;
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if (val > ATH11K_SPECTRAL_SCAN_COUNT_MAX)
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return -EINVAL;
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@@ -441,16 +436,11 @@ static ssize_t ath11k_write_file_spectra
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{
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struct ath11k *ar = file->private_data;
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unsigned long val;
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- char buf[32];
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- ssize_t len;
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-
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- len = min(count, sizeof(buf) - 1);
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- if (copy_from_user(buf, user_buf, len))
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- return -EFAULT;
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+ ssize_t ret;
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- buf[len] = '\0';
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- if (kstrtoul(buf, 0, &val))
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- return -EINVAL;
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+ ret = kstrtoul_from_user(user_buf, count, 0, &val);
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+ if (ret)
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+ return ret;
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if (val < ATH11K_SPECTRAL_MIN_BINS ||
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val > ar->ab->hw_params.spectral.max_fft_bins)
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