kernel: fix: no need to clear unused memory

bugfix typo "- -" from the previous patch and the memset() cause a kernel oops because the memset (sometimes) overwrite some valid memory address. The patch fix the typo and remove the memset because it is not usefult Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

kernel: fix: no need to clear unused memory
bugfix typo "- -" from the previous patch and the memset() cause a kernel oops because the memset (sometimes) overwrite some valid memory address. The patch fix the typo and remove the memset because it is not usefult Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
777a5eda · Federico Vaga · 33cfe823 · 777a5eda
Commit 777a5eda authored May 12, 2014 by Federico Vaga
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fa-irq.c kernel/fa-irq.c +1 -2

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--- a/kernel/fa-irq.c
+++ b/kernel/fa-irq.c
@@ -144,9 +144,8 @@ void zfad_dma_done(struct zio_cset *cset)
 		 * resize the datalen, by removing the trigger tstamp and the
 		 * extra samples (trigger samples, 1 for each channel)
 		 */
-		block->datalen = block->datalen - FA_TRIG_TIMETAG_BYTES -
+		block->datalen = block->datalen - FA_TRIG_TIMETAG_BYTES
 						- (ctrl->ssize * FA_NCHAN);
-		memset(block->data+block->datalen, 0, FA_TRIG_TIMETAG_BYTES);

 		/* update seq num */
 		ctrl->seq_num = i;