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| author | Salah Triki <salah.triki@gmail.com> | 2025-07-31 04:15:27 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-09-19 16:29:56 +0200 |
| commit | 41886580fe97b0c9f3aeb173709dbe2045dad86a (patch) | |
| tree | ad80667a7f2638aecd326850c7781753656fda2d /drivers/edac | |
| parent | 0b8f64204eadc7ebb42ff75568574be465f97aa3 (diff) | |
| download | linux-41886580fe97b0c9f3aeb173709dbe2045dad86a.tar.gz linux-41886580fe97b0c9f3aeb173709dbe2045dad86a.tar.bz2 linux-41886580fe97b0c9f3aeb173709dbe2045dad86a.zip | |
EDAC/altera: Delete an inappropriate dma_free_coherent() call
commit ff2a66d21fd2364ed9396d151115eec59612b200 upstream.
dma_free_coherent() must only be called if the corresponding
dma_alloc_coherent() call has succeeded. Calling it when the allocation fails
leads to undefined behavior.
Delete the wrong call.
[ bp: Massage commit message. ]
Fixes: 71bcada88b0f3 ("edac: altera: Add Altera SDRAM EDAC support")
Signed-off-by: Salah Triki <salah.triki@gmail.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Dinh Nguyen <dinguyen@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/aIrfzzqh4IzYtDVC@pc
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/edac')
| -rw-r--r-- | drivers/edac/altera_edac.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/edac/altera_edac.c b/drivers/edac/altera_edac.c index 0234407f3632..ae890b4ece09 100644 --- a/drivers/edac/altera_edac.c +++ b/drivers/edac/altera_edac.c @@ -127,7 +127,6 @@ static ssize_t altr_sdr_mc_err_inject_write(struct file *file, ptemp = dma_alloc_coherent(mci->pdev, 16, &dma_handle, GFP_KERNEL); if (!ptemp) { - dma_free_coherent(mci->pdev, 16, ptemp, dma_handle); edac_printk(KERN_ERR, EDAC_MC, "Inject: Buffer Allocation error\n"); return -ENOMEM; |