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Re: smatch: false positives related to locking — Semantic Matching Tool

Re: smatch: false positives related to locking

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On Mon, Nov 24, 2014 at 10:49:58AM +0100, Wolfram Sang wrote:
> drivers/i2c/busses/i2c-rcar.c:465 rcar_i2c_master_xfer() error: double unlock 'spin_lock:&priv->lock'
> 
> I just noticed, that I get these errors only when using an 'allnoconfig'
> with just I2C enabled. If I use 'multi_v7_defconfig', all is fine.
> 

Ah, yes.  allnomod config messes up the locking check but I don't know
how I can detect this in Smatch.  :(

regards,
dan carpenter

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