diff options
| author | Michael Buesch <mb@bu3sch.de> | 2009-06-11 13:06:31 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-11 08:51:03 -0700 |
| commit | 73e0d48b8c28fb39a0bb6713c875e9919a9af546 (patch) | |
| tree | b250b867130a9233a0daa6cbf2ba11b9a5e868a1 /drivers/parport | |
| parent | 0b4068a1287b02018d1b3159e7be6f27f3e3e68c (diff) | |
parport_pc: Fix subscription bugs
This patch fixes array subscription bugs in the parport_pc driver.
drivers/parport/parport_pc.c: In function ‘parport_irq_probe’:
drivers/parport/parport_pc.c:1589: warning: array subscript is above array bounds
drivers/parport/parport_pc.c: In function ‘parport_pc_probe_port’:
drivers/parport/parport_pc.c:1579: warning: array subscript is above array bounds
The patch also fixes a few other array bugs, which the compiler was
unable to find. Coding style violations are also fixed.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/parport')
| -rw-r--r-- | drivers/parport/parport_pc.c | 34 |
1 files changed, 18 insertions, 16 deletions
diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c index 4e63cc9e2778..24984c4a1ba4 100644 --- a/drivers/parport/parport_pc.c +++ b/drivers/parport/parport_pc.c @@ -1246,17 +1246,17 @@ static void __devinit show_parconfig_smsc37c669(int io, int key) (cr1 & 0x08 ) ? "Standard mode only (SPP)" : modes[cr4 & 0x03], (cr4 & 0x40) ? "1.7" : "1.9"); } - + /* Heuristics ! BIOS setup for this mainboard device limits the choices to standard settings, i.e. io-address and IRQ are related, however DMA can be 1 or 3, assume DMA_A=DMA1, DMA_C=DMA3 (this is true e.g. for TYAN 1564D Tomcat IV) */ - if(cr23*4 >=0x100) { /* if active */ - while((superios[i].io!= 0) && (i<NR_SUPERIOS)) + if (cr23 * 4 >= 0x100) { /* if active */ + while ((i < NR_SUPERIOS) && (superios[i].io != 0)) i++; - if(i==NR_SUPERIOS) + if (i == NR_SUPERIOS) { printk(KERN_INFO "Super-IO: too many chips!\n"); - else { + } else { int d; switch (cr23*4) { case 0x3bc: @@ -1332,12 +1332,12 @@ static void __devinit show_parconfig_winbond(int io, int key) printk(KERN_INFO "Winbond LPT Config: Port mode=%s\n", modes[crf0 & 0x07]); } - if(cr30 & 0x01) { /* the settings can be interrogated later ... */ - while((superios[i].io!= 0) && (i<NR_SUPERIOS)) + if (cr30 & 0x01) { /* the settings can be interrogated later ... */ + while ((i < NR_SUPERIOS) && (superios[i].io != 0)) i++; - if(i==NR_SUPERIOS) + if (i == NR_SUPERIOS) { printk(KERN_INFO "Super-IO: too many chips!\n"); - else { + } else { superios[i].io = (cr60<<8)|cr61; superios[i].irq = cr70&0x0f; superios[i].dma = (((cr74 & 0x07) > 3) ? @@ -1575,24 +1575,26 @@ static void __devinit detect_and_report_it87(void) static int get_superio_dma (struct parport *p) { - int i=0; - while( (superios[i].io != p->base) && (i<NR_SUPERIOS)) + int i = 0; + + while ((i < NR_SUPERIOS) && (superios[i].io != p->base)) i++; - if (i!=NR_SUPERIOS) + if (i != NR_SUPERIOS) return superios[i].dma; return PARPORT_DMA_NONE; } static int get_superio_irq (struct parport *p) { - int i=0; - while( (superios[i].io != p->base) && (i<NR_SUPERIOS)) + int i = 0; + + while ((i < NR_SUPERIOS) && (superios[i].io != p->base)) i++; - if (i!=NR_SUPERIOS) + if (i != NR_SUPERIOS) return superios[i].irq; return PARPORT_IRQ_NONE; } - + /* --- Mode detection ------------------------------------- */ |