Showing error 929

User: Jiri Slaby
Error type: Leaving function in locked state
Error type description: Some lock is not unlocked on all paths of a function, so it is leaked
File location: drivers/mfd/sm501.c
Line in file: 369
Project: Linux Kernel
Project version: 2.6.28
Confirmation: Fixed by 992bb253cd6f08129edcb42b90e6c388ebf605f8
Tools: Stanse (1.2)
Entered: 2012-03-02 21:35:17 UTC

Source: 

 339                goto already;
 340        }
 341
 342        sm->unit_power[unit] += to ? 1 : -1;
 343        to = sm->unit_power[unit] ? 1 : 0;
 344
 345        if (to) {
 346                if (gate & (1 << unit))
 347                        goto already;
 348                gate |= (1 << unit);
 349        } else {
 350                if (!(gate & (1 << unit)))
 351                        goto already;
 352                gate &= ~(1 << unit);
 353        }
 354
 355        switch (mode) {
 356        case 1:
 357                writel(gate, sm->regs + SM501_POWER_MODE_0_GATE);
 358                writel(clock, sm->regs + SM501_POWER_MODE_0_CLOCK);
 359                mode = 0;
 360                break;
 361        case 2:
 362        case 0:
 363                writel(gate, sm->regs + SM501_POWER_MODE_1_GATE);
 364                writel(clock, sm->regs + SM501_POWER_MODE_1_CLOCK);
 365                mode = 1;
 366                break;
 367
 368        default:
 369                return -1;
 370        }
 371
 372        writel(mode, sm->regs + SM501_POWER_MODE_CONTROL);
 373        sm501_sync_regs(sm);
 374
 375        dev_dbg(sm->dev, "gate %08lx, clock %08lx, mode %08lx\n",
 376                gate, clock, mode);
 377
 378        sm501_mdelay(sm, 16);
 379
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