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drivers/*: mark variables with uninitialized_var()

Browse source 
Mark variables in drivers/* with uninitialized_var() if such a warning
appears, and analysis proves that the var is initialized properly on all
paths it is used.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Jeff Garzik 2007-07-17 05:39:58 -04:00
parent b1734d2388
commit a6343afb6e
8 changed files with 25 additions and 11 deletions
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4
drivers/atm/zatm.c
View file

@ -915,7 +915,7 @@ static int open_tx_first(struct atm_vcc *vcc)
unsigned long flags;
u32 *loop;
unsigned short chan;
int pcr,unlimited;
int unlimited;
DPRINTK("open_tx_first\n");
zatm_dev = ZATM_DEV(vcc->dev);
@ -936,6 +936,8 @@ static int open_tx_first(struct atm_vcc *vcc)
vcc->qos.txtp.max_pcr >= ATM_OC3_PCR);
if (unlimited && zatm_dev->ubr != -1) zatm_vcc->shaper = zatm_dev->ubr;
else {
int uninitialized_var(pcr);
if (unlimited) vcc->qos.txtp.max_sdu = ATM_MAX_AAL5_PDU;
if ((zatm_vcc->shaper = alloc_shaper(vcc->dev,&pcr,
vcc->qos.txtp.min_pcr,vcc->qos.txtp.max_pcr,unlimited))

4
drivers/char/cyclades.c
View file

@ -4466,10 +4466,10 @@ static void cy_hangup(struct tty_struct *tty)
static int __devinit cy_init_card(struct cyclades_card *cinfo)
{
struct cyclades_port *info;
u32 mailbox;
u32 uninitialized_var(mailbox);
unsigned int nports;
unsigned short chip_number;
int index, port;
int uninitialized_var(index), port;
spin_lock_init(&cinfo->card_lock);

2
drivers/mtd/ubi/eba.c
View file

@ -368,7 +368,7 @@ int ubi_eba_read_leb(struct ubi_device *ubi, int vol_id, int lnum, void *buf,
int err, pnum, scrub = 0, idx = vol_id2idx(ubi, vol_id);
struct ubi_vid_hdr *vid_hdr;
struct ubi_volume *vol = ubi->volumes[idx];
uint32_t crc;
uint32_t uninitialized_var(crc);
err = leb_read_lock(ubi, vol_id, lnum);
if (err)

2
drivers/net/r8169.c
View file

@ -2338,7 +2338,7 @@ static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
{
struct skb_shared_info *info = skb_shinfo(skb);
unsigned int cur_frag, entry;
struct TxDesc *txd;
struct TxDesc * uninitialized_var(txd);
entry = tp->cur_tx;
for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) {

6
drivers/net/tokenring/smctr.c
View file

@ -3692,7 +3692,6 @@ static int smctr_process_rx_packet(MAC_HEADER *rmf, __u16 size,
__u16 rcode, correlator;
int err = 0;
__u8 xframe = 1;
__u16 tx_fstatus;
rmf->vl = SWAP_BYTES(rmf->vl);
if(rx_status & FCB_RX_STATUS_DA_MATCHED)
@ -3783,7 +3782,9 @@ static int smctr_process_rx_packet(MAC_HEADER *rmf, __u16 size,
}
break;
case TX_FORWARD:
case TX_FORWARD: {
__u16 uninitialized_var(tx_fstatus);
if((rcode = smctr_rcv_tx_forward(dev, rmf))
!= POSITIVE_ACK)
{
@ -3811,6 +3812,7 @@ static int smctr_process_rx_packet(MAC_HEADER *rmf, __u16 size,
}
}
break;
}
/* Received MAC Frames Processed by CRS/REM/RPS. */
case RSP:

2
drivers/usb/misc/auerswald.c
View file

@ -664,7 +664,7 @@ static int auerchain_control_msg (pauerchain_t acp, struct usb_device *dev, unsi
int ret;
struct usb_ctrlrequest *dr;
struct urb *urb;
int length;
int uninitialized_var(length);
dbg ("auerchain_control_msg");
dr = kmalloc (sizeof (struct usb_ctrlrequest), GFP_KERNEL);

9
drivers/video/matrox/matroxfb_maven.c
View file

@ -273,8 +273,11 @@ static int matroxfb_PLL_mavenclock(const struct matrox_pll_features2* pll,
}
}
}
/* if h2/post/in/feed have not been assigned, return zero (error) */
if (besth2 < 2)
return 0;
dprintk(KERN_ERR "clk: %02X %02X %02X %d %d\n", *in, *feed, *post, fxtal, fwant);
return fxtal * (*feed) / (*in) * ctl->den;
}
@ -284,7 +287,7 @@ static unsigned int matroxfb_mavenclock(const struct matrox_pll_ctl* ctl,
unsigned int* in, unsigned int* feed, unsigned int* post,
unsigned int* htotal2) {
unsigned int fvco;
unsigned int p;
unsigned int uninitialized_var(p);
fvco = matroxfb_PLL_mavenclock(&maven1000_pll, ctl, htotal, vtotal, in, feed, &p, htotal2);
if (!fvco)
@ -715,7 +718,9 @@ static int maven_find_exact_clocks(unsigned int ht, unsigned int vt,
m->regs[0x82] = 0x81;
for (x = 0; x < 8; x++) {
unsigned int a, b, c, h2;
unsigned int c;
unsigned int uninitialized_var(a), uninitialized_var(b),
uninitialized_var(h2);
unsigned int h = ht + 2 + x;
if (!matroxfb_mavenclock((m->mode == MATROXFB_OUTPUT_MODE_PAL) ? &maven_PAL : &maven_NTSC, h, vt, &a, &b, &c, &h2)) {

7
drivers/video/riva/riva_hw.c
View file

@ -1223,6 +1223,8 @@ static int CalcVClock
}
}
}
/* non-zero: M/N/P/clock values assigned. zero: error (not set) */
return (DeltaOld != 0xFFFFFFFF);
}
/*
@ -1240,7 +1242,10 @@ int CalcStateExt
int dotClock
)
{
int pixelDepth, VClk, m, n, p;
int pixelDepth;
int uninitialized_var(VClk),uninitialized_var(m),
uninitialized_var(n), uninitialized_var(p);
/*
* Save mode parameters.
*/