Re: unitialized variable in 2.4.7 (sym53c8xx, dmi_scan)

[richard offer]

* frm [e-mail] "07/25/01 22:25:32 +0100" | sed '1,$s/^/* /'
*
*>  static __init int disable_ide_dma(struct dmi_blacklist *d)
*>  {
*>  # ifdef CONFIG_BLK_DEV_IDE
*> @@ -169,6 +170,7 @@
*>  # endif
*>         return 0;
*>  }
*> +#endif
* 
* This just makes it harder to finish the merges

Huh ? Was it a bad patch ?

* 
*> makes that automatic.
*> ===== drivers/scsi/sym53c8xx.c 1.6 vs edited =====
*> --- 1.6/drivers/scsi/sym53c8xx.c        Thu Jul  5 04:28:16 2001
*> +++ edited/drivers/scsi/sym53c8xx.c     Wed Jul 25 13:37:10 2001
*> @@ -6991,7 +6991,7 @@
*>  
*>  static void ncr_soft_reset(ncb_p np)
*>  {
*> -       u_char istat;
*> +       u_char istat=0;
*>         int i;
*>  
*>         if (!(np->features & FE_ISTAT1) || !(INB (nc_istat1) & SRUN))
* 
* And this means when we get a real bug with istat not being assigned it
* wont be seen.
* 

Isn't the only way that istat could be unassigned would be for the for loop
never to be executed. An unlikely event, but the compiler sees it as a
warning and means its not possible to build the code with -Werror.

richard.

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Richard Offer                     Technical Lead, Trust Technology, SGI
"Specialization is for insects"
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